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!

G.Skill Launches New DDR4 Memory For Ryzen CPUs Up to 3466 MHz

Subject: Memory | March 8, 2017 - 12:46 AM |
Tagged: ryzen, overclocking, gskill, ddr4, AM4

G.Skill recently announced two new series of DDR4 memory geared towards AMD’s new AM4 platform and Ryzen CPUs. The FORTIS series comes in kits up to 64 GB at 2400 MHz while the Flare X series features kits up to 32 GB at 3466 MHz.

GSkill Fortis and Flare X DDR4 for Ryzen.png

The FORTIS series come in black with graphics on the sides. At launch, there will be kits in 16 GB, 32 GB, and 64 GB capacities clocked at 2,133 and 2,400 MHz. These kits run at 1.2V.

Flare X reportedly uses “carefully selected” IC chips that have been tested and validated for the AM4 platform and Ryzen processors. These kits run at 1.35V out of the box and come in 16 GB, 32 GB, and 64 GB at 3200 MHz with 14-14-14-34 timings or in a 16 GB (2x8GB) kit clocked at 3466 MHz with 16-16-16-36 timings.

It is worth noting that Ryzen officially supports memory up to 3200 MHz without needing to overclock the bus speed using one of eight memory straps/dividers (this is apparently a limitation of the UEFI and not Ryzen's memory controllers). In order to take advantage of DDR4 with higher clocks, you will need to overclock the base clock (which is made easier/possible on motherboards with external clock generators). G.Skill showed two examples using a Ryzen 7 1700 and an Asus Crosshair VI Hero motherboard where they got a 4x16GB kit clocked at 3467MHz (16-16-16-36 CR1) by setting a 25.4 x multiplier and 118.16 MHz bus speed. The other example was DDR4 at 3200 MHz with a multiplier of 28.4 and 119.99 MHz bus speed. It is interesting that they were able to push the bus speed that high while maintaining stability. G.Skill posted two CPU-Z validation screen shots on its news announcement.

G.Skill did not announce pricing, but it did state the new memory kits would be available later this month. Looking around on Newegg, it seems some of the lower speed kits with 4GB DIMMs are available right now but the new kits with higher clocks and 8GB and 16GB DIMMs are not available yet. The less exciting Fortis series does appear to be available though with a 2x8GB 16GB DDR4-2400 priced at $124.99. Even the Fortis series isn’t fully launched yet though since the 2x16GB and 4x16GB kits aren’t listed.

Source: G.Skill

PSA: AMD XFR Enabled On All Ryzen CPUs, X SKUs Have Wider Range

Subject: Processors | March 4, 2017 - 06:00 AM |
Tagged: xfr, turbo, sensemi, ryzen, overclocking, amd

Following the leaks and official news and reviews of AMD's Ryzen processors there were a few readers asking for clarity on the eXtended Frequency Range (XFR) technology and whether or not it is enabled on all Ryzen CPUs or only the X models. After quite a bit of digging through forums and contradictory articles, I believe I have the facts in hand to answer those questions. In short, XFR is supported on all Ryzen processors (at least all the Ryzen 7 CPUs released so far) including the non-X Ryzen 7 1700; however the X SKUs get a bigger boost from XFR than the non-X model(s).

Specifically, the Ryzen 7 1700X and Ryzen 7 1800X when paired with a high end air or water cooler is able to boost up to an additional 100 MHz over the 4 GHz advertised boost clock while the Ryzen 7 1700 is limited to an XFR boost of up to 50 MHz so long as there is thermal headroom. Interestingly, the Extended Frequency Range boosts are done in 25 MHz increments (and likely achieved by adjusting the multiplier by 0.25x).

AMD XFR.jpg

How does this all work though? Well, with Ryzen AMD introduced a new suite of technologies it calls "SenseMI" which, despite the questionable name (heh), puts a lot of intelligence into the processor and builds on the paths AMD started down with Carrizo and Excavator designs. The five main technologies are Pure Power, Precision Boost, Extended Frequency Range (XFR), Neural Net Prediction, and Smart Prefetch. The first three are important when talking about XFR.

With Ryzen AMD has embedded a number of sensors throughout the chip that accurately measure temperatures, clock speeds, and voltages within 1°C, 1mA, 1mW, 1mV and it has connected all the sensors together using its Infinity Fabric. Pure Power lets AMD make localized adaptive adjustments to optimize power usage without negatively affecting performance. Precision Boost is AMD's equivalent to Intel's Turbo Boost and it is built on top of Pure Power's sensor network. Precision Boost enables a Ryzen CPU to dynamically clock up beyond the base clock speed across all cores or clock even further across two cores. Lightly threaded workloads will benefit from the latter while workloads using any more than two threads will get the all core boost, so there is not a lot of granularity in number of cores vs allowed boost but there does not really need to be and the Precision Boost is more granular than Intel's Turbo Boost in clock speed bumps of 25MHz increments versus 100 MHz increments up to the maximum allowed Precision Boost clock. As an example, the Ryzen 7 1800X has a base clock of 3.6 GHz and so long as there is thermal headroom it can adjust the clock speed up by 25 MHz steps to 3.7 GHz across all eight cores or up to as much as 4.0 GHz on two cores.

From there XFR allows the processor to clock beyond the 2 core Precision Boost (XFR only works to increase the boost of the two core turbo not the all core turbo) and as temperatures decrease the allowed XFR increases. While initial reports and slides from AMD suggested XFR would scale with the cooler (air, water, LN2, LHe) with no upper limit aside from temperature and other sensor input, it appears AMD has taken a step back and limited X series Ryzen 7 chips to a maximum XFR boost of 100 MHz over the two core Precision Boost and non-X series Ryzen 7 processors to a maximum XFR boost of 50 MHz over the maximum boosted two core clock speed. The Ryzen 7 1700 will have two extra steps above its two core boost so while the chip has a base clock of 3.0 GHz, Precision Boost can take all eight cores to 3.1GHz or two cores to 3.7 GHz. Further, so long as temperatures are still in check XFR can take those two boosted cores to 3.75 GHz.

AMD Ryzen 1800X XFR Boost.jpg

XFR will be a setting that you are able to toggle on and off via a motherboard setting, and some motherboards may have the feature turned on by default. Unfortunately, if you choose to manually overclock you will lose XFR functionality (and boost). Further, Precision Boost and XFR are connected and you are not able to turn off one but not the other (you either get both or nothing). Note that if you overclock using AMD's "Ryzen Master" software utility, it will also disable Precision Boost and XFR, but the lower power C-states will stay enabled which may be desirable if you want the power bill and room to cool down when not gaming or creating content.

I would expect as yields and the binning processes improve for Ryzen AMD may lift or extend the XFR limits either with a product refresh (not sure if a micro-code update would be possible) or maybe only in the upcoming hexa-core and quad core Ryzen 5 and Ryzen 3 processors that have less cores and more headroom for overclocking. That is merely speculation however. Ryzen 5 and Ryzen 3 should support XFR on both X and non-X models, but it is too early to know or say what the XFR boost will be.

XFR is neat though not as big of a deal as I originally thought it to be without limits, and as many expected manual overclocking is still going to be the way to go. This is not all bad news though, because it means that the much cheaper Ryzen 7 1700 just got a lot more attractive. You give up a 50 MHz XFR boost that you can't use anyway because you are going to manually overclock and you gamble a bit on getting a decently binned chip that can hit R7 1800X clock speeds, but you save $170 that you can put towards a better motherboard or a better graphics card (or a second one for CrossFire - even on B350).

I am still waiting on our overclocking results as well as Kyle's overclocking results when it comes to the Ryzen 7 1700, but several other sites are reporting success at hitting at least 4.0 GHz (though not many results over 4.0 or 4.1 GHz which isn't unexpected since these are not the highest binned chips and yields are still young so bins are more real/based on silicon and not just for product segmentation but most can hit the higher speeds at x power, v voltage, and n temperature et al). For example, Legit Reviews reports that they were able to hit manually overclock a R7 1700 to 4.0 GHz on all cores at 1.3875 volts. They were able to keep the non-X Ryzen chip stable with those settings on both aftermarket air and AIO water coolers.

prec_boost.png

AMD's Ryzen Master overclocking software lets you OC and setup CPU and memory profiles from your OS.

More on overclocking: Tom's Hardware has posted that, according to AMD, the safe voltage ceiling for overclocking is 1.35V if you want the CPU to last, but that up to 1.45V CPU voltage is "sustainable". Further, note that is is recommended not to set the SOC Voltage higher than 1.2 volts. Also, much like Intel's platform, it is possible to adjust the base clock (BCLCK) but you may run into stability problems with the rest of the system if you push this too far outside expected specifications (PC Gamer claims you can set this up to 140 MHz though so AM4/Ryzen may be more forgiving in this area than Intel. Edit: The highest figure I've seen so far is 106.4 MHz being stable before the rest of the system gets too far out of spec and becomes unstable. The main benefit to adjusting this is to support overclocked RAM above 3200 MHz so unless you need that your overclocking efforts are probably better spent adjusting the multiplier. /edit). Finally, when manually overclocking you will be able to turn off SMT and/or turn off cores in 2s (e.g. disable 2 cores or disable 4 cores, you can't disable in single numbers but groups of two).

Hopefully this helps to clear up the XFR confusion. If you do not need guaranteed clocks with a bonus XFR boost for a stable workstation build, saving money and going with the Ryzen 7 1700 and manually overclocking it to at least attempt to reach R7 1700X or 1800X speeds seems like the way to go for enthusiasts that are considering making the jump to AM4 especially if you enjoy tinkering with things like overclocking. There's nothing wrong with going with the higher priced and binned chips if you want to go that route, but don't do it for XFR in my opinion.

What are your thoughts? Are you planning to overclock your Ryzen CPU or do you think the Precision Boost and XFR is enough?

Source: Ars Technica

Delidded Ryzen 7 1700 Confirms AMD Is Using Solder With IHS On Ryzen Processors

Subject: Processors | March 1, 2017 - 09:17 PM |
Tagged: solder, Ryzen 1700, ryzen, overclocking, IHS, delid, amd

Professional extreme overclocker Roman "der8auer" Hartung from Germany recently managed to successfully de-lid his AMD Ryzen 7 1700 processor and confirmed that AMD is, in fact, using solder as its thermal interface material of choice between the Ryzen die and IHS (integrated heat spreader). The confirmation that AMD is using solder is promising news for enthusiasts eager to overclock the new processors and see just how far they are able to push them on air and water cooling.

Delidded Ryzen 7 1700 Die.JPG

Image credit: Roman Hartung. Additional high resolution photos are available here.

In a video on his YouTube channel, der8auer ("The Farmer") shows the steps involved in delidding the Ryzen 7 1700 which involve using razor blades, a heating element to get the IHS heated to a temperature high enough to melt the indium (~170°C on the block with the indium melting around 157°C), and a whole lot of courage. After using the razor blades to cut the glue around the edges, he heated up the IHS enough to start melting the solder and after a cringe-worthy cracking sound he was able to lift the package away from the IHS with the die and on-package components intact!

He does note that the Ryzen using PGA rather than the LGA method Intel has moved to makes the CPU a bit harder to handle as the pins are on the CPU rather than the socket and are easily bent. Compared to the delidding process and possibility of cracking the die or ripping off some components and killing the $329 CPU though, bent pins are nothing and can usually be bent back heh. He reportedly went through two previous Ryzen CPUs before getting a successful de-lid on the third attempt after all.

It seems that AMD is using two small pads of Indium solder along with some gold plating on the inside of the IHS to facilitate heat transfer and allow the solder to mate with the IHS. Because AMD is using what seems to be high quality solder TIM, delidding and replacing the TIM does not seem to be necessary at all; however, Roman "der8auer" Hartung speculates that direct die cooling could work out very well for those enthusiasts brave enough to try it since the cooler does not need to put high amounts of pressure onto the CPU to hold it into place unlike an LGA socket. 

If you are interested in seeing the overclocking benefits of de-lidding and direct die cooling a Ryzen CPU, keep an eye on his YouTube channel for a video over the weekend detailing his testing using a Ryzen 7 1800X.

I am really looking forward to seeing how far enthusiasts are able to push Ryzen (especially on water), and maybe we can convince Morry to de-lid a Ryzen CPU!

Happy Overclocking!

Also read:

Source: der8auer

Overclockers Push Ryzen 7 1800X to 5.2 GHz On LN2, Break Cinebench Record

Subject: Processors | February 28, 2017 - 09:06 PM |
Tagged: Zen, Ryzen 1800X, ryzen, overclocking, LN2, Cinebench, amd

During AMD’s Ryzen launch event a team of professional overclockers took the stage to see just how far they could push the top Zen-based processor. Using a bit of LN2 (liquid nitrogen) and a lot of voltage, the overclocking team was able to hit an impressive 5.20 GHz with all eight cores (16 threads) enabled!

Ryzen Cinebench Benchmark Record.png

In addition to the exotic LN2 cooling, the Ryzen 7 1800X needed 1.875 volts to hit 5.20 GHz. That 5.20 GHz was achieved by setting the base clock at 137.78 MHz and the multiplier at 37.75. Using these settings, the chip was even stable enough to benchmark with a score of 2,363 on Cinebench R15’s multi-threaded test.

According to information from AMD, a stock Ryzen 7 1800X comes clocked at 3.6 GHz base and up to 4 GHz boost (XFR can go higher depending on HSF) and is able to score 1,619 in Cinebench. The 30% overclock to 5.20 GHz got the overclockers an approximately 45% higher CInebench score.

Further, later in the overclocking event, they managed to break a Cinebench world record of 2,445 points by achieving a score of 2,449 (it is not clear what clockspeed this was at). Not bad for a brand-new processor!

AMD Ryzen 1800X Overclocked On LN2 to 5GHz.jpg

The overclocking results are certainly impressive, and suggest that Ryzen may be a decent overclocker so long as you have the cooling setup to get it there (the amount of voltage needed is a bit worrying though heh). Interestingly, HWBot shows a Core i7 6900K (also 8C/16T) hitting 5.22 GHz and scoring 2,146 in CInebench R15. That Ryzen can hit similar numbers with all cores and threads turned on is promising.

I am looking forward to seeing what people are able to hit on air and water cooling and if XFR will work as intended and get most of the way to a manual overclock without the effort of manually overclocking. I am also curious how the power phases and overclocking performance will stack up on motherboards using the B350 versus X370 chipsets. With the eight core chips able to hit 5.2, I expect the upcoming six core Ryzen 5 and four core Ryzen 3 processors to clock even higher which would certainly help gaming performance for budget builds!

Austin Evans was able to get video of the overclocking event which you can watch here (Vimeo).

Also read:

Source: Hexus

Living dangerously; delidding your i7-7700k

Subject: Processors | January 30, 2017 - 02:29 PM |
Tagged: kaby lake, core i7 7700k, overclocking, delidding, risky business

Recently [H]ard|OCP popped the lid off of an i7-7700k to see if the rumours that once again Intel did not use high quality thermal interface material underneath the heatspreader.  The experiment was a success in one way, the temperatures dropped 25.28%, from 91C to 68C. However the performance did not change much, they still could not reach a stable 5GHz overclock.  They did not let that initial failure discourage them and spent some more time with their enhanced Kaby Lake processor to find scenarios in which they could reach or pass the 5GHz mark. They met with success when they reduced the RAM frequency to 2666MHz, by disabling Hyperthreading they could reach 5GHz with 3600MHz RAM but only when they increased the VCore did they manage to break 5GHz. 

Of course you must exercise caution when tweaking to this level, a higher VCore will certainly reduce the lifespan of your chip and delidding can have a disastrous outcome even if done carefully.  If you are interested in trying this, The Tech Report has a link to a 3D printed tool to help you in your endeavours.

kaby2.jpg

"Last week we shared our overclocking results with our retail purchased Core i7-7700K Kaby Lake processor. We then took the Integrated Heat Spreader off, replaced the Thermal Interface Material and tried again for 5GHz with 3600MHz memory and failed. This time, less RAM MHz and more core voltage!"

Here are some more Processor articles from around the web:

Processors

Source: [H]ard|OCP

Three Kaby Lakes for three Z270s; it's an overclocking menage a trois

Subject: Processors | January 3, 2017 - 03:54 PM |
Tagged: z270, overclocking, kaby lake, Intel, i7-7700k, core i7-7700k, 7th generation core, 7700k, 14nm

Having already familiarized yourself with Intel's new Kaby Lake architecture and the i7-7700k processor in Ryan's review you may now be wondering how well the new CPU overclocks for others.  [H]ard|OCP received three i7-7700k's and three different Z270 motherboards for testing and they set about overclocking these in combination to see what frequency they could reach.  Only one of the chips was ever stable at 5GHz, and it is reassuring that it managed that on all three motherboards, the remaining two would only hit 4.8GHz which is still not a bad result.  Drop by to see their settings in full detail.

1483420732E61CFZVtYr_1_1.jpg

"After having a few weeks to play around with Intel's new Kaby Lake architecture Core i7-7700K processors, we finally have some results that we want to discuss when it comes to overclocking and the magic 5GHz many of us are looking for, and what we think your chances are of getting there yourself."

Here are some more Processor articles from around the web:

Processors

Source: [H]ard|OCP
Author:
Subject: Processors
Manufacturer: Intel

Architectural Background

It probably doesn't surprise any of our readers that there has been a tepid response to the leaks and reviews that have come out about the new Core i7-7700K CPU ahead of the scheduled launch of Kaby Lake-S from Intel. Replacing the Skylake-based 6700K part as the new "flagship" consumer enthusiast CPU, the 7700K has quite a bit stacked against it. We know that Kaby Lake is the first in the new sequence of tick-tock-optimize, and thus there are few architectural changes to any portion of the chip. However, that does not mean that the 7700K and Kaby Lake in general don't offer new capabilities (HEVC) or performance (clock speed). 

The Core i7-7700K is in an interesting spot as well with regard to motherboards and platforms. Nearly all motherboards that run the Z170 chipset will be able to run the new Kaby Lake parts without requiring an upgrade to the newly released Z270 chipset. However, the likelihood that any user on a Z170 platform today using a Skylake processor will feel the NEED to upgrade to Kaby Lake is minimal, to say the least. The Z270 chipset only offers a couple of new features compared to last generation, so the upgrade path is again somewhat limited in excitement.

Let's start by taking a look at the Core i7-7700K and how it compares to the previous top-end parts from the consumer processor line and then touch on the changes that Kaby Lake brings to the table.

slides06.jpg

With the beginning of CES just days away (as I write this), Intel is taking the wrapping paper off of its first gift of 2017 to the industry. As you can see from the slide above, more than just the Kaby Lake-S consumer socketed processors are launching today, but other components including Iris Plus graphics implementations and quad-core notebook implementations will need to wait for another day.

slides10.jpg

For DIY builders and OEMs, Kaby Lake-S, now known as the 7th Generation Core Processor family, offer some changes and additions. First, we will get a dual-core HyperThreaded processor with an unlocked designation in the Core i3-7350K. Other than the aforementioned Z270 chipset, Kaby Lake will be the first platform compatible with Intel Optane memory. (To be extra clear, I was told that previous processors will NOT be able to utilize Optane in its M.2 form factor.)

slides11.jpg

Though we have already witnessed Lenovo announcing products using Optane, this is the first official Intel discussion about it. Optane memory will be available in M.2 modules that can be installed on Z270 motherboards, improving snappiness and responsiveness. It seems this will be launched later in the quarter as we don't have any performance numbers or benchmarks to point to demonstrating the advantages that Intel touts. I know both Allyn and I are very excited to see how this differs from previous Intel caching technologies.

  Core i7-7700K Core i7-6700K Core i7-5775C Core i7-4790K Core i7-4770K Core i7-3770K
Architecture Kaby Lake Skylake Broadwell Haswell Haswell Ivy Bridge
Process Tech 14nm+ 14nm 14nm 22nm 22nm 22nm
Socket LGA 1151 LGA 1151 LGA 1150 LGA 1150 LGA 1150 LGA 1155
Cores/Threads 4/8 4/8 4/8 4/8 4/8 4/8
Base Clock 4.2 GHz 4.0 GHz 3.3 GHz 4.0 GHz 3.5 GHz 3.5 GHz
Max Turbo Clock 4.5 GHz 4.2 GHz 3.7 GHz 4.4 GHz 3.9 GHz 3.9 GHz
Memory Tech DDR4 DDR4 DDR3 DDR3 DDR3 DDR3
Memory Speeds Up to 2400 MHz Up to 2133 MHz Up to 1600 MHz Up to 1600 MHz Up to 1600 MHz Up to 1600 MHz
Cache (L4 Cache) 8MB 8MB 6MB (128MB) 8MB 8MB 8MB
System Bus DMI3 - 8.0 GT/s DMI3 - 8.0 GT/s DMI2 - 6.4 GT/s DMI2 - 5.0 GT/s DMI2 - 5.0 GT/s DMI2 - 5.0 GT/s
Graphics HD Graphics 630 HD Graphics 530 Iris Pro 6200 HD Graphics  4600 HD Graphics 4600 HD Graphics  4000
Max Graphics Clock 1.15 GHz 1.15 GHz 1.15 GHz 1.25 GHz 1.25 GHz 1.15 GHz
TDP 91W 91W 65W 88W 84W 77W
MSRP $339 $339 $366 $339 $339 $332

Continue reading our review of the Intel Core i7-7700K Kaby Lake processor!!

IDF 2016: G.Skill Shows Off Low Latency DDR4-3333MHz Memory

Subject: Memory | August 20, 2016 - 01:25 AM |
Tagged: X99, Samsung, ripjaws, overclocking, G.Skill, ddr4, Broadwell-E

Early this week at the Intel Developer Forum in San Francisco, California G.Skill showed off new low latency DDR4 memory modules for desktop and notebooks. The company launched two Trident series DDR4 3333 MHz kits and one Ripjaws branded DDR4 3333 MHz SO-DIMM. While these speeds are not close to the fastest we have seen from them, these modules offer much tighter timings. All of the new memory modules use Samsung 8Gb chips and will be available soon.

On the desktop side of things, G.Skill demonstrated a 128GB (8x16GB) DDR4-3333 kit with CAS latencies of 14-14-14-34 running on a Asus ROG Rampage V Edition 10 motherboard with an Intel Core i7 6800K processor. They also showed a 64GB (8x8GB) kit clocked at 3333 MHz with timings of 13-13-13-33 running on a system with the same i7 6800K and Asus X99 Deluxe II motherboard.

128GB 3333MHz CL14 demo.JPG

G.Skill demonstrating 128GB DDR4-3333 memory kit at IDF 2016.

In addition to the desktop DIMMs, G.Skill showed a 32GB Ripjaws kit (2x16GB) clocked at 3333 MHz running on an Intel Skull Canyon NUC. The SO-DIMM had timings of 16-18-18-43 and ran at 1.35V.

Nowadays lower latency is not quite as important as it once was, but there is still a slight performance advantage to be had tighter timings and pure clockspeed is not the only important RAM metric. Overclocking can get you lower CAS latencies (sometimes at the cost of more voltage), but if you are not into that tedious process and are buying RAM anyway you might as well go for the modules with the lowest latencies out of the box at the clockspeeds you are looking for. I am not sure how popular RAM overclocking is these days outside of benchmark runs and extreme overclockers though to be honest.

Technical Session OC System.JPG

Overclocking Innovation session at IDF 2016.

With regards to extreme overclocking, there was reportedly an "Overclocking Innovation" event at IDF where G.Skill and Asus overclocker Elmor achieved a new CPU overclocking record of 5,731.78 MHz on the i7 6950X running on a system with G.Skill memory and Asus motherboard. The company's DDR4 record of 5,189.2 MHz was not beaten at the event, G.Skill notes in its press release (heh).

Are RAM timings important to you when looking for memory? What are your thoughts on the ever increasing clocks of new DDR4 kits with how overclocking works on the newer processors/motherboards?

Source: G.Skill

How far can a GTX 1070 Founders Edition go?

Subject: Graphics Cards | June 14, 2016 - 01:46 PM |
Tagged: GTX1070, nvidia, overclocking

Overclocking the new Pascal GPUs can be accomplished with the EVGA Precision X tool as it allows you to bump up the power, temperature target and fan speed as well as the frequencies for the GPU and memory easily and effectively.  [H]ard|OCP set out to push the 1070 as far as it would go with this software in a recent review.  The power target can only be increased to 112%, which they implemented along with setting the fan to 100% as this is about the maximum performance, not about peace and quiet.  After quite a bit of testing they settled on 2062MHz GPU and 4252MHz RAM clocks as the highest stable frequency this particular card could manage.  The results show a card which leaves the TITAN X in the dirt and this card does not even have a custom cooler; we anxiously await the non-Founders Edition releases to see what they can accomplish.

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"In our overclocking review of the NVIDIA GeForce GTX 1070 Founders Edition we will see how far we can overclock the GPU and memory and then compare performance with GeForce GTX TITAN X and GeForce GTX 980 Ti. How high will she go? Can the $449 GTX 1070 outperform a $1000 GTX TITAN X? The answer is exciting."

Here are some more Graphics Card articles from around the web:

Graphics Cards

Source: [H]ard|OCP