Author:
Subject: Processors
Manufacturer: AMD

Here Comes the Midrange!

Today AMD is announcing the upcoming Ryzen 5 CPUs.  A little bit was known about them from several weeks ago when AMD talked about their upcoming 6 core processors, but official specifications were lacking.  Today we get to see what Ryzen 5 is mostly about.

ryzen5_01.png

There are four initial SKUs that AMD is talking about this evening.  These encompass quad core and six core products.  There are two “enthusiast” level SKUs with the X connotation while the other two are aimed at a less edgy crowd.

The two six core CPUs are the 1600 and 1600X.  The X version features the higher extended frequency range when combined with performance cooling.  That unit is clocked at a base 3.6 GHz and achieves a boost of 4 GHz.  This compares well to the top end R7 1800X, but it is short 2 cores and four threads.  The price of the R5 1600X is a very reasonable $249.  The 1600 does not feature the extended range, but it does come in at a 3.2 GHz base and 3.6 GHz boost.  The R5 1600 has a MSRP of $219.

ryzen5_04.png

When we get to the four core, eight thread units we see much the same stratification.  The top end 1500X comes in at $189 and features a base clock of 3.5 GHz and a boost of 3.7 GHz.  What is interesting about this model is that the XFR is raised by 100 MHz vs. other XFR CPUs.  So instead of an extra 100 MHz boost when high end cooling is present we can expect to see 200 MHz.  In theory this could run at 3.9 GHz in the extended state.  The lowest priced R5 is the 1400 which comes in at a very modest $169.  This features a 3.2 GHz base clock and a 3.4 GHz boost.

The 1400, 1500, and 1600 CPUs come with Wraith cooling solutions.  The 1600X comes bare as it is assumed that users want to use something a bit more robust.  The R5 1400 comes with the lower end Wraith Stealth cooler while the R5 1500X and R5 1600 come with the bigger Wraith Spire.  The bottom 3 SKUs are all rated at 65 watts TDP.  The 1600X comes in at the higher 95 watt rating.  Each of the CPUs are unlocked for overclocking.

ryzen5_03.png

These chips will provide a more fleshed out pricing structure for the Ryzen processors and provide users and enthusiasts with lower cost options for those wanting to invest in AMD again.  These chips all run on the new AM4 platform which are pretty strong in terms of features and I/O performance.

ryzen5_02.png

AMD is not shipping these parts today, but rather announcing them.  Review samples are not in hand yet and AMD expects world-wide availability by April 11.  This is likely a very necessary step for AMD as current AM4 motherboard availability is not at the level we were expecting to see.  We also are seeing some pretty quick firmware updates from motherboard partners to address issues with these first AM4 boards.  By April 11 I would expect to see most of the issues solved and a healthy supply of motherboards on the shelves to handle the influx of consumers waiting to buy these more midrange priced CPUs from AMD.

What they did not cover or answer would be how the four core products would be presented.  Would each be a single CCX and only 8 MB of L3 cace, or would AMD disable two cores in each CCX and present 16 MB of L3?  We currently do not have the answer to this.  Considering the latency between accessing different CCX units we can surely hope they only keep one CCX active.

ryzen5_05.png

Ryzen has certainly been a success for AMD and I have no doubt that their quarter will be pretty healthy with the estimated sales of around 1 million Ryzen CPUs since launch.  Announcing these new chips will give the mainstream and budget enthusiasts something to look forward to and plan their purchases around.  AMD is not announcing the Ryzen 3 products at this time.

Update: AMD got back to me this morning about a question I asked them about the makeup of cores, CCX units, and L3 cache.  Here is their response.

1600X: 3+3 with 16MB L3 cache. 1600: 3+3 with 16MB L3 cache. 1500X: 2+2 with 16MB L3 cache. 1400: 2+2 with 8MB L3 cache. As with Ryzen 7, each core still has 512KB local L2 cache.

Ryzen Locking on Certain FMA3 Workloads

Subject: Processors | March 15, 2017 - 05:51 PM |
Tagged: ryzen, Infinity Fabric, hwbot, FMA3, Control Fabric, bug, amd, AM4

Last week a thread was started at the HWBOT forum and discussed a certain workload that resulted in a hard lock every time it was run.  This was tested with a variety of motherboards and Ryzen processors from the 1700 to the 1800X.  In no circumstance at default power and clock settings did the processor not lock from the samples that they have worked on, as well as products that contributors have been able to test themselves.

ryzen.jpg

This is quite reminiscent of the Coppermine based Pentium III 1133 MHz processor from Intel which failed in one specific workload (compiling).  Intel had shipped a limited number of these CPUs at that time, and it was Kyle from HardOCP and Tom from Tom’s Hardware that were the first to show this behavior in a repeatable environment.  Intel stopped shipping these models and had to wait til the Tualatin version of the Pentium III to be released to achieve that speed (and above) and be stable in all workloads.

The interesting thing about this FMA3 finding is that it is seen to not be present in some overclocked Ryzen chips.  To me this indicates that it could be a power delivery issue with the chip.  A particular workload that heavily leans upon the FPU could require more power than the chip’s Control Fabric can deliver, therefore causing a hard lock.  Several tested overclocked chips with much more power being pushed to them seems as though enough power is being applied to the specific area of the chip to allow the operation to be completed successfully.

This particular fact implies to me that AMD does not necessarily have a bug such as what Intel had with the infamous F-Div issue with the original Pentium, or AMD’s issue with the B2 stepping of Phenom.  AMD has a very complex voltage control system that is controlled by the Control Fabric portion of the Infinity Fabric.  With a potential firmware or microcode update this could be a fixable problem.  If this is the case, then AMD would simply increase power being supplied to the FPU/SIMD/SSE portion of the Ryzen cores.  This may come at a cost through lower burst speeds to keep TDP within their stated envelope.

A source at AMD has confirmed this issue and that a fix will be provided via motherboard firmware update.  More than likely this comes in the form of an updated AGESA protocol.

Source: HWBOT Forums

AMD Ryzen Community Update Addresses Windows 10 Thread Scheduling, SMT Performance, and More

Subject: Processors | March 13, 2017 - 08:48 PM |
Tagged: Windows 7, windows 10, thread scheduling, SMT, ryzen, Robert Hallock, processor, cpu, amd

AMD's Robert Hallock (previously the Head of Global Technical Marketing for AMD and now working full time on the CPU side of things) has posted a comprehensive Ryzen update, covering AMD's official stance on Windows 10 thread scheduling, the performance implications of SMT, Windows power management settings, and more. The post in its entirety is reproduced below, and also available from AMD by following this link.

AMD_RYZEN.png

(Begin statement:)

It’s been about two weeks since we launched the new AMD Ryzen™ processor, and I’m just thrilled to see all the excitement and chatter surrounding our new chip. Seems like not a day goes by when I’m not being tweeted by someone doing a new build, often for the first time in many years. Reports from media and users have also been good:

  • “This CPU gives you something that we needed for a long time, which is a CPU that gives you a well-rounded experience.” –JayzTwoCents
  • Competitive performance at 1080p, with Tech Spot saying the “affordable Ryzen 7 1700” is an “awesome option” and a “safer bet long term.”
  • ExtremeTech showed strong performance for high-end GPUs like the GeForce GTX 1080 Ti, especially for gamers that understand how much value AMD Ryzen™ brings to the table
  • Many users are noting that the 8-core design of AMD Ryzen™ 7 processors enables “noticeably SMOOTHER” performance compared to their old platforms.

While these findings have been great to read, we are just getting started! The AMD Ryzen™ processor and AM4 Platform both have room to grow, and we wanted to take a few minutes to address some of the questions and comments being discussed across the web.

Thread Scheduling

We have investigated reports alleging incorrect thread scheduling on the AMD Ryzen™ processor. Based on our findings, AMD believes that the Windows® 10 thread scheduler is operating properly for “Zen,” and we do not presently believe there is an issue with the scheduler adversely utilizing the logical and physical configurations of the architecture.

As an extension of this investigation, we have also reviewed topology logs generated by the Sysinternals Coreinfo utility. We have determined that an outdated version of the application was responsible for originating the incorrect topology data that has been widely reported in the media. Coreinfo v3.31 (or later) will produce the correct results.

Finally, we have reviewed the limited available evidence concerning performance deltas between Windows® 7 and Windows® 10 on the AMD Ryzen™ CPU. We do not believe there is an issue with scheduling differences between the two versions of Windows.  Any differences in performance can be more likely attributed to software architecture differences between these OSes.

Going forward, our analysis highlights that there are many applications that already make good use of the cores and threads in Ryzen, and there are other applications that can better utilize the topology and capabilities of our new CPU with some targeted optimizations. These opportunities are already being actively worked via the AMD Ryzen™ dev kit program that has sampled 300+ systems worldwide.

Above all, we would like to thank the community for their efforts to understand the Ryzen processor and reporting their findings. The software/hardware relationship is a complex one, with additional layers of nuance when preexisting software is exposed to an all-new architecture. We are already finding many small changes that can improve the Ryzen performance in certain applications, and we are optimistic that these will result in beneficial optimizations for current and future applications.

Temperature Reporting

The primary temperature reporting sensor of the AMD Ryzen™ processor is a sensor called “T Control,” or tCTL for short. The tCTL sensor is derived from the junction (Tj) temperature—the interface point between the die and heatspreader—but it may be offset on certain CPU models so that all models on the AM4 Platform have the same maximum tCTL value. This approach ensures that all AMD Ryzen™ processors have a consistent fan policy.

Specifically, the AMD Ryzen™ 7 1700X and 1800X carry a +20°C offset between the tCTL° (reported) temperature and the actual Tj° temperature. In the short term, users of the AMD Ryzen™ 1700X and 1800X can simply subtract 20°C to determine the true junction temperature of their processor. No arithmetic is required for the Ryzen 7 1700. Long term, we expect temperature monitoring software to better understand our tCTL offsets to report the junction temperature automatically.

The table below serves as an example of how the tCTL sensor can be interpreted in a hypothetical scenario where a Ryzen processor is operating at 38°C.

TEMPS.png

Power Plans

Users may have heard that AMD recommends the High Performance power plan within Windows® 10 for the best performance on Ryzen, and indeed we do. We recommend this plan for two key reasons: 

  1. Core Parking OFF: Idle CPU cores are instantaneously available for thread scheduling. In contrast, the Balanced plan aggressively places idle CPU cores into low power states. This can cause additional latency when un-parking cores to accommodate varying loads.
  2. Fast frequency change: The AMD Ryzen™ processor can alter its voltage and frequency states in the 1ms intervals natively supported by the “Zen” architecture. In contrast, the Balanced plan may take longer for voltage and frequency (V/f) changes due to software participation in power state changes.

In the near term, we recommend that games and other high-performance applications are complemented by the High Performance plan. By the first week of April, AMD intends to provide an update for AMD Ryzen™ processors that optimizes the power policy parameters of the Balanced plan to favor performance more consistent with the typical usage models of a desktop PC.

Simultaneous Multi-threading (SMT)

Finally, we have investigated reports of instances where SMT is producing reduced performance in a handful of games. Based on our characterization of game workloads, it is our expectation that gaming applications should generally see a neutral/positive benefit from SMT. We see this neutral/positive behavior in a wide range of titles, including: Arma® 3, Battlefield™ 1, Mafia™ III, Watch Dogs™ 2, Sid Meier’s Civilization® VI, For Honor™, Hitman™, Mirror’s Edge™ Catalyst and The Division™. Independent 3rd-party analyses have corroborated these findings.

For the remaining outliers, AMD again sees multiple opportunities within the codebases of specific applications to improve how this software addresses the “Zen” architecture. We have already identified some simple changes that can improve a game’s understanding of the "Zen" core/cache topology, and we intend to provide a status update to the community when they are ready.

Wrap-up

Overall, we are thrilled with the outpouring of support we’ve seen from AMD fans new and old. We love seeing your new builds, your benchmarks, your excitement, and your deep dives into the nuts and bolts of Ryzen. You are helping us make Ryzen™ even better by the day.  You should expect to hear from us regularly through this blog to answer new questions and give you updates on new improvements in the Ryzen ecosystem.

(End statement.)

Such topics as Windows 7 vs. Windows 10 performance, SMT impact, and thread scheduling will no doubt still be debated, and AMD has correctly pointed out that optimization for this brand new architecture will only improve Ryzen performance going forward. Our own findings as to Ryzen and the Windows 10 thread scheduler appear to be validated as AMD officially dismisses performance impact in that area, though there is still room for improvement in other areas from our initial gaming performance findings. As mentioned in the post, AMD will have an update for Windows power plan optimization by the first week of April, and the company has "already identified some simple changes that can improve a game’s understanding of the 'Zen' core/cache topology, and we intend to provide a status update to the community when they are ready", as well.

It is refreshing to see a company publicly acknowledging the topics that have resulted in so much discussion in the past couple of weeks, and their transparency is commendable, with every issue (that this author is aware of) being touched on in the post.

Source: AMD
Subject: Processors
Manufacturer: AMD

** UPDATE 3/13 5 PM **

AMD has posted a follow-up statement that officially clears up much of the conjecture this article was attempting to clarify. Relevant points from their post that relate to this article as well as many of the requests for additional testing we have seen since its posting (emphasis mine):

  • "We have investigated reports alleging incorrect thread scheduling on the AMD Ryzen™ processor. Based on our findings, AMD believes that the Windows® 10 thread scheduler is operating properly for “Zen,” and we do not presently believe there is an issue with the scheduler adversely utilizing the logical and physical configurations of the architecture."

  • "Finally, we have reviewed the limited available evidence concerning performance deltas between Windows® 7 and Windows® 10 on the AMD Ryzen™ CPU. We do not believe there is an issue with scheduling differences between the two versions of Windows.  Any differences in performance can be more likely attributed to software architecture differences between these OSes."

So there you have it, straight from the horse's mouth. AMD does not believe the problem lies within the Windows thread scheduler. SMT performance in gaming workloads was also addressed:

  • "Finally, we have investigated reports of instances where SMT is producing reduced performance in a handful of games. Based on our characterization of game workloads, it is our expectation that gaming applications should generally see a neutral/positive benefit from SMT. We see this neutral/positive behavior in a wide range of titles, including: Arma® 3, Battlefield™ 1, Mafia™ III, Watch Dogs™ 2, Sid Meier’s Civilization® VI, For Honor™, Hitman™, Mirror’s Edge™ Catalyst and The Division™. Independent 3rd-party analyses have corroborated these findings.

    For the remaining outliers, AMD again sees multiple opportunities within the codebases of specific applications to improve how this software addresses the “Zen” architecture. We have already identified some simple changes that can improve a game’s understanding of the "Zen" core/cache topology, and we intend to provide a status update to the community when they are ready."

We are still digging into the observed differences of toggling SMT compared with disabling the second CCX, but it is good to see AMD issue a clarifying statement here for all of those out there observing and reporting on SMT-related performance deltas.

** END UPDATE **

Editor's Note: The testing you see here was a response to many days of comments and questions to our team on how and why AMD Ryzen processors are seeing performance gaps in 1080p gaming (and other scenarios) in comparison to Intel Core processors. Several outlets have posted that the culprit is the Windows 10 scheduler and its inability to properly allocate work across the logical vs. physical cores of the Zen architecture. As it turns out, we can prove that isn't the case at all. -Ryan Shrout

Initial reviews of AMD’s Ryzen CPU revealed a few inefficiencies in some situations particularly in gaming workloads running at the more common resolutions like 1080p, where the CPU comprises more of a bottleneck when coupled with modern GPUs. Lots of folks have theorized about what could possibly be causing these issues, and most recent attention appears to have been directed at the Windows 10 scheduler and its supposed inability to properly place threads on the Ryzen cores for the most efficient processing. 

I typically have Task Manager open while running storage tests (they are boring to watch otherwise), and I naturally had it open during Ryzen platform storage testing. I’m accustomed to how the IO workers are distributed across reported threads, and in the case of SMT capable CPUs, distributed across cores. There is a clear difference when viewing our custom storage workloads with SMT on vs. off, and it was dead obvious to me that core loading was working as expected while I was testing Ryzen. I went back and pulled the actual thread/core loading data from my testing results to confirm:

SMT on usage.png

The Windows scheduler has a habit of bouncing processes across available processor threads. This naturally happens as other processes share time with a particular core, with the heavier process not necessarily switching back to the same core. As you can see above, the single IO handler thread was spread across the first four cores during its run, but the Windows scheduler was always hitting just one of the two available SMT threads on any single core at one time.

My testing for Ryan’s Ryzen review consisted of only single threaded workloads, but we can make things a bit clearer by loading down half of the CPU while toggling SMT off. We do this by increasing the worker count (4) to be half of the available threads on the Ryzen processor, which is 8 with SMT disabled in the motherboard BIOS.

smtoff4workers.png

SMT OFF, 8 cores, 4 workers

With SMT off, the scheduler is clearly not giving priority to any particular core and the work is spread throughout the physical cores in a fairly even fashion.

Now let’s try with SMT turned back on and doubling the number of IO workers to 8 to keep the CPU half loaded:

smton8workers.png

SMT ON, 16 (logical) cores, 8 workers

With SMT on, we see a very different result. The scheduler is clearly loading only one thread per core. This could only be possible if Windows was aware of the 2-way SMT (two threads per core) configuration of the Ryzen processor. Do note that sometimes the workload will toggle around every few seconds, but the total loading on each physical core will still remain at ~%50. I chose a workload that saturated its thread just enough for Windows to not shift it around as it ran, making the above result even clearer.

Synthetic Testing Procedure

While the storage testing methods above provide a real-world example of the Windows 10 scheduler working as expected, we do have another workload that can help demonstrate core balancing with Intel Core and AMD Ryzen processors. A quick and simple custom-built C++ application can be used to generate generic worker threads and monitor for core collisions and resolutions.

This test app has a very straight forward workflow. Every few seconds it generates a new thread, capping at N/2 threads total, where N is equal to the reported number of logical cores. If the OS scheduler is working as expected, it should load 8 threads across 8 physical cores, though the division between the specific logical core per physical core will be based on very minute parameters and conditions going on in the OS background.

By monitoring the APIC_ID through the CPUID instruction, the first application thread monitors all threads and detects and reports on collisions - when a thread from our app is running on the same core as another thread from our app. That thread also reports when those collisions have been cleared. In an ideal and expected environment where Windows 10 knows the boundaries of physical and logical cores, you should never see more than one thread of a core loaded at the same time.

app01.png

Click to Enlarge

This screenshot shows our app working on the left and the Windows Task Manager on the right with logical cores labeled. While it may look like all logical cores are being utilized at the same time, in fact they are not. At any given point, only LCore 0 or LCore 1 are actively processing a thread. Need proof? Check out the modified view of the task manager where I copy the graph of LCore 1/5/9/13 over the graph of LCore 0/4/8/12 with inverted colors to aid viewability.

app02-2.png

If you look closely, by overlapping the graphs in this way, you can see that the threads migrate from LCore 0 to LCore 1, LCore 4 to LCore 5, and so on. The graphs intersect and fill in to consume ~100% of the physical core. This pattern is repeated for the other 8 logical cores on the right two columns as well. 

Running the same application on a Core i7-5960X Haswell-E 8-core processor shows a very similar behavior.

app03.png

Click to Enlarge

Each pair of logical cores shares a single thread and when thread transitions occur away from LCore N, they migrate perfectly to LCore N+1. It does appear that in this scenario the Intel system is showing a more stable threaded distribution than the Ryzen system. While that may in fact incur some performance advantage for the 5960X configuration, the penalty for intra-core thread migration is expected to be very minute.

The fact that Windows 10 is balancing the 8 thread load specifically between matching logical core pairs indicates that the operating system is perfectly aware of the processor topology and is selecting distinct cores first to complete the work.

Information from this custom application, along with the storage performance tool example above, clearly show that Windows 10 is attempting to balance work on Ryzen between cores in the same manner that we have experienced with Intel and its HyperThreaded processors for many years.

Continue reading our look at AMD Ryzen and Windows 10 scheduling!

MSI's new Z270 GAMING M6 AC, look closely and you might even find a kitchen sink

Subject: Motherboards | March 10, 2017 - 02:22 PM |
Tagged: Z270 GAMING M6 AC, z270, ryzen, msi, amd

The new MSI Z270 GAMING M6 AC has a huge selection of features, up to and including a free Phanteks RGB LED strip for those who suffer from chronic RGBitis

MSI270.jpg

The add-in card you see on the side is an Intel Wi-Fi/Bluetooth card which supports MU-MIMO.  The onboard audio is powered by Nahimic, which MSI refers to as Audio Boost 4 and it is isolated from the other components on the motherboard to prevent noise.  There is a U.2 slot and two M.2 slots with a removable heatsink they call M.2 Shield.  They fully isolated the memory circuit design and as you can see below The Witcher 3 seems to like the DDR4 Boost design.

benches.jpg

Check out the PR below for a closer look at the features included, including the special USB slot for your VR headset and the One-Click to VR option.

MSI, world leading in gaming hardware innovation, is proud to announce a brand new Enthusiast GAMING motherboard, the Z270 GAMING M6 AC with its incredibly versatile and complete foundation for a high-end gaming system. Inspired from a futuristic armored spaceship, the Z270 GAMING M6 AC design with multilayer plating, wings and armaments emphasize an ultramodern style. Erupting from the core, the entire color spectrum flows through illuminated lines. The complete motherboard and heatsink design offers a strong look and feel and uses heavy quality components to deliver the best performance and stability as the base of any gaming rig. Added features such as Audio Boost 4 with Nahimic 2, Twin Turbo M.2 with M.2 Shield, VR Boost, Killer LAN & Intel WIFI AC, and the option to fully customize the RGB LEDs to any color using Mystic light, makes the Z270 GAMING M6 AC one of the most high-end and desirable Z270 motherboards to build a gaming rig with.

DDR4 Boost
Through fully isolating the memory circuit design, the DDR4 Boost ensures maximum performance and stability. The technical enhancements of DDR4 Boost allow for more stability at higher memory speeds compared to other brands.DDR4 Boost benchmark based on The Witcher 3 Enjoy the additional boost in gaming performance or when working with large video and photo files. Enable Intel® Extreme Memory Profile with ease using a single option in the BIOS to gain performance and create a perfectly stable system.

Twin Turbo M.2 with M.2 shield & U.2
Enjoy a blazing fast system boot up and insanely quick loading of applications and games with MSI motherboards. Twin Turbo M.2 delivers PCI-E Gen3 x4 performance with transfer speeds up to 64 Gb/s for the latest SSDs. It also supports the all-new Intel® Optane™ technology. M.2 Shield (patent pending) is a thermal solution, which keeps the M.2 or Optane™ device safe and cool to prevent damage and thermal throttling. M.2 GENIE makes setting up RAID easy by taking less steps, using any M.2 or PCI-E SSD (even when used in a mixed configuration). The Z270 GAMING M6 AC supports the latest storage interface, U.2 as well.

Audio Boost 4 with Nahimic 2
With Audio Boost, powered by Nahimic, MSI motherboards deliver the highest sound quality through the use of premium quality audio components and an isolated audio PCB. An added audio cover and golden audio connectors ensure the purest audio signal.

VR Ready & VR Boost
VR Boost is a smart chip that ensures a clean and strong signal to a VR optimized USB port located on the back, to reduce motion sickness caused by a bad signal. The One-Click to VR option in the MSI Gaming App gets your PC primed for VR use in just a single click by setting your components to max. performance and preventing other applications from impacting your VR experience negatively.

Intel Wi-Fi AC with Antennas
Optimize your gaming rig to deliver game networking traffic over LAN for the best possible online gaming experience, while using WiFi for other online applications. This next-generation Intel® Wi-Fi / Bluetooth solution uses smart MU-MIMO technology, delivering AC speeds up to 867Mbps. Perfect for streaming and gaming at the same time.

Includes free Phanteks RGB LED strip
This RGB LED strip helps to transform and synchronize colors in your case to any liking. Simply connect the plug & play strip to the Mystic Light Extension pin header located on MSI motherboards, without the need of external power, and set a color and choose an LED effect to match it with your motherboard and other peripherals RGB LEDs. Use the included double sided 3M tape to place the strip firmly wherever you want inside (or even outside) your chassis.

Source: MSI
Author:
Subject: Processors
Manufacturer: AMD

The right angle

While many in the media and enthusiast communities are still trying to fully grasp the importance and impact of the recent AMD Ryzen 7 processor release, I have been trying to complete my review of the 1700X and 1700 processors, in between testing the upcoming GeForce GTX 1080 Ti and preparing for more hardware to show up at the offices very soon. There is still much to learn and understand about the first new architecture from AMD in nearly a decade, including analysis of the memory hierarchy, power consumption, overclocking, gaming performance, etc.

During my Ryzen 7 1700 testing, I went through some overclocking evaluation and thought the results might be worth sharing earlier than later. This quick article is just a preview of what we are working on so don’t expect to find the answers to Ryzen power management here, only a recounting of how I was able to get stellar performance from the lowest priced Ryzen part on the market today.

The system specifications for this overclocking test were identical to our original Ryzen 7 processor review.

Test System Setup
CPU AMD Ryzen 7 1800X
AMD Ryzen 7 1700X
AMD Ryzen 7 1700
Intel Core i7-7700K
Intel Core i5-7600K
Intel Core i7-6700K
Intel Core i7-6950X
Intel Core i7-6900K
Intel Core i7-6800K
Motherboard ASUS Crosshair VI Hero (Ryzen)
ASUS Prime Z270-A (Kaby Lake, Skylake)
ASUS X99-Deluxe II (Broadwell-E)
Memory 16GB DDR4-2400
Storage Corsair Force GS 240 SSD
Sound Card On-board
Graphics Card NVIDIA GeForce GTX 1080 8GB
Graphics Drivers NVIDIA 378.49
Power Supply Corsair HX1000
Operating System Windows 10 Pro x64

Of note is that I am still utilizing the Noctua U12S cooler that AMD provided for our initial testing – all of the overclocking and temperature reporting in this story is air cooled.

DSC02643.jpg

First, let’s start with the motherboard. All of this testing was done on the ASUS Crosshair VI Hero with the latest 5704 BIOS installed. As I began to discover the different overclocking capabilities (BCLK adjustment, multipliers, voltage) I came across one of the ASUS presets. These presets offer pre-defined collections of settings that ASUS feels will offer simple overclocking capabilities. An option for higher BCLK existed but the one that caught my eye was straight forward – 4.0 GHz.

asusbios.jpg

With the Ryzen 1700 installed, I thought I would give it a shot. Keep in mind that this processor has a base clock of 3.0 GHz, a rated maximum boost clock of 3.7 GHz, and is the only 65-watt TDP variant of the three Ryzen 7 processors released last week. Because of that, I didn’t expect the overclocking capability for it to match what the 1700X and 1800X could offer. Based on previous processor experience, when a chip is binned at a lower power draw than the rest of a family it will often have properties that make it disadvantageous for running at HIGHER power. Based on my results here, that doesn’t seem to the case.

4.0.PNG

By simply enabling that option in the ASUS UEFI and rebooting, our Ryzen 1700 processor was running at 4.0 GHz on all cores! For this piece, I won’t be going into the drudge and debate on what settings ASUS changed to get to this setting or if the voltages are overly aggressive – the point is that it just works out of the box.

Continue reading our look at overclocking the new Ryzen 7 1700 processor!

Two CPUs of plump juicy Ryzens

Subject: Processors | March 8, 2017 - 02:43 PM |
Tagged: Ryzen 1700X, Ryzen 1700, amd

With suggested prices of $330 for the Ryzen 1700 and $400 for the 1700X, a lot of users are more curious about the performance of these two chips, especially with some sites reporting almost equal performance when these chips are overclocked.  [H]ard|OCP tested both of these chips at the same clock speeds to see what performance differences there are between the two.  As it turns out the only test which resulted in delta of 1% or more was WinRAR, all other tests showed a minuscule difference between the X and the plain old 1700.  They are going to follow these findings up with more tests, once they source some CPUs from retail outlets to see if there are any differences there.

"So there has been a lot of talk about what Ryzen CPU do you buy? The way I think is that you want to buy the least expensive one that will give you the best performance. That is exactly what we expect to find out here today. Is the Ryzen 1700 for $330 as good as the $400 1700X, or even the $500 1800X? "

Here are some more Processor articles from around the web:

Processors

Source: [H]ard|OCP

Type A positive; CRYORIG's free conversion kits for AM4

Subject: Cases and Cooling | March 7, 2017 - 01:50 PM |
Tagged: ryzen, CRYORIG, amd, AM4

If you own a CRYORIG cooler, apart from the M9i, you can head to this page to request a free upgrade kit to support AM4 motherboards.  Depending on the cooler you purchased you will need to choose from one of four different kits and CRYORIG will send it off to you for free, no shipping or other fees required.

modles.PNG

You will need to produce either a product registration number or proof of purchase of your CRYORIG product as well as proof of purchase of an AMD Ryzen or AM4 motherboard.  The upgrade kits will ship out later this month and sometime in the latter half of the year CRYORIG will release four new coolers which natively support AM4, as well as previous AM3(+) boards.

ryzensupport.jpg

07.03.17 Taipei, Taiwan – With the much-anticipated release of the AMD Ryzen, CRYORIG prepares to launch a full line of AMD Ryzen dedicated coolers as well as simple upgrade kits for existing AMD compatible CRYORIG cooling products. Beginning from Type A to Type D, there will be a total of 4 different AM4 upgrade kits depending on the corresponding CRYORIG product. Natively supporting Ryzen dedicated version models will begin to release later in Q2 2017 and will consist of the full CRYORIG cooling portfolio.

CRYORIG’s four AM4 upgrade kits will be released beginning in late March and will be completely free of charge (including shipping) for existing users to apply for. Users will only need to provide a proof of purchase of the CRYORIG product (or product registration number), and a proof of purchase of an AMD Ryzen or AM4 CPU or Motherboard. Just fill out and supply all necessary info at www.cryorig.com/getam4.php, the kit will be sent directly to the provided address. Distributors and select channels will also have these kits available.

Beginning in Q2 2017, CRYORIG will start shipping dedicated Ryzen ready versions of CRYORIG’s full product line. Exact release dates will vary from model to model. The Ryzen Supported sticker will be found on all dedicated Ryzen ready coolers for easy identification, and indicates that no additional kits are required for Ryzen support.

 

Source: CRYORIG

AMD Prepares Zen-Based "Naples" Server SoC For Q2 Launch

Subject: Processors | March 7, 2017 - 09:02 AM |
Tagged: SoC, server, ryzen, opteron, Naples, HPC, amd

Over the summer, AMD introduced its Naples platform which is the server-focused implementation of the Zen microarchitecture in a SoC (System On a Chip) package. The company showed off a prototype dual socket Naples system and bits of information leaked onto the Internet, but for the most part news has been quiet on this front (whereas there were quite a few leaks of Ryzen which is AMD's desktop implementation of Zen).

The wait seems to be finally over, and AMD appears ready to talk more about Naples which will reportedly launch in the second quarter of this year (Q2'17) with full availability of processors and motherboards from OEMs and channel partners (e.g. system integrators) happening in the second half of 2017. Per AMD, "Naples" processors are SoCs with 32 cores and 64 threads that support 8 memory channels and a (theoretical) maximum of 2TB DDR4-2667. (Using the 16GB DIMMs available today, Naples support 256GB of DDR4 per socket.) Further, the Naples SoC features 64 PCI-E 3.0 lanes. Rumors also indicated that the SoC included support for sixteen 10GbE interfaces, but AMD has yet to confirm this or the number of SATA/SAS ports offered. AMD did say that Naples has an optimized cache structure for HPC compute and "dedicated security hardware" though it did not go into specifics. (The security hardware may be similar to the ARM TrustZone technology it has used in the past.) 

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Naples will be offered in single and dual socket designs with dual socket systems offering up 64 cores, 128 threads, 32 DDR4 DIMMs (512 GB using 16 GB modules) on 16 total memory channels with 21.3 GB/s per channel bandwidth (170.7 GB/s per SoC), 128 PCI-E 3.0 lanes, and an AMD Infinity Fabric interconnect between the two processor sockets.

AMD claims that its Naples platform offers up to 45% more cores, 122% more memory bandwidth, and 60% more I/O than its competition. For its internal comparison, AMD chose the Intel Xeon E5-2699A V4 which is the processor with highest core count that is intended for dual socket systems (there are E7s with more cores but those are in 4P systems). The Intel Xeon E5-2699A V4 system is a 14nm 22 core (44 thread) processor clocked at 2.4 GHz base to 3.6 GHz turbo with 55MB cache. It supports four channels of DDR4-2400 for a maximum bandwidth of 76.8 GB/s (19.2 GB/s per channel) as well as 40 PCI-E 3.0 lanes. A dual socket system with two of those Xeons features 44 cores, 88 threads, and a theoretical maximum of 1.54 TB of ECC RAM.

AMD's reference platform with two 32 core Naples SoCs and 512 GB DDR4 2400 MHz was purportedly 2.5x faster at the seismic analysis workload than the dual Xeon E5-2699A V4 OEM system with 1866 MHz DDR4. Curiously, when AMD compared a Naples reference platform with 44 cores enabled and running 1866 MHz memory to a similarly configured Intel system the Naples platform was twice as fast. It seems that the increased number of memory channels and memory bandwidth are really helping the Naples platform pull ahead in this workload.

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The company also intends Naples to power machine learning and AI projects with servers that feature Naples processors and Radeon Instinct graphics processors.

AMD further claims that its Naples platform is more balanced and suited to cloud computing and scientific and HPC workloads than the competition. Specifically, Forrest Norrod the Senior Vice president and General Manager of AMD's Enterprise, Embedded, and Semi-Custom Business Unit stated:

“’Naples’ represents a completely new approach to supporting the massive processing requirements of the modern datacenter. This groundbreaking system-on-chip delivers the unique high-performance features required to address highly virtualized environments, massive data sets and new, emerging workloads.”

There is no word on pricing yet, but it should be competitive with Intel's offerings (the E5-2699A V4 is $4,938). AMD will reportedly be talking data center strategy and its upcoming products during the Open Compute Summit later this week, so hopefully there will be more information released at those presentations.

(My opinions follow)

This is one area where AMD needs to come out strong with support from motherboard manufacturers, system integrators, OEM partners, and OS and software validation to succeed. Intel is not likely to take AMD encroaching on its lucrative server market share lightly, and AMD is going to have a long road ahead of it to regain the market share it once had in this area, but it does have a decent architecture on its hands to build off of with Zen and if it can secure partner support Intel is certainly going to have competition here that it has not had to face in a long time. Intel and AMD competing over the data center market is a good thing, and as both companies bring new technology to market it will trickle down into the consumer level hardware. Naples' success in the data center could mean a profitable AMD with R&D money to push Zen as far as it can – so hopefully they can pull it off.

What are your thoughts on the Naples SoC and AMD's push into the server market?

Also read:

Source: AMD

AMD Releases Radeon Software Crimson ReLive 17.3.1

Subject: Graphics Cards | March 6, 2017 - 09:08 PM |
Tagged: amd, graphics drivers

Just prior to the release of Tom Clancy’s Ghost Recon Wildlands, AMD has released another graphics driver with specific optimizations. Radeon Software Crimson ReLive Edition 17.3.1 is support to provide up to a 6% performance improvement (on an RX 480) in that title. It also adds a CrossFire profile under DirectX 11. Note that there’s a known issue with 3- and 4-GPU systems, which will apparently make the game crash back to desktop on launch.

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Beyond this, the new graphics driver also fixes several issues, many of which involve flickering textures, objects, or mouse pointers. It also solves an issue where installing the driver could cause a failed reboot.

If you have an AMD GPU, then you can pick up the driver from their website.

Source: AMD