Subject: General Tech | April 19, 2017 - 08:05 PM | Jeremy Hellstrom
Tagged: video, amd, Joe Macri, ryzen
TechARP just posted a video of AMD's Joe Macri discussing the new Ryzen processors from AMD. It is not quite 20 minutes long which gives you a chance to quickly hear from AMD about what they feel the new architecture means for the company, as well as the impact it will have on gamers and enthusiasts. He does mention the HSA Foundation and how AMD is working towards a basic change in how PCs utilize resources. They also embedded a link to a video featuring AMD's Radeon Product Marketing Manager, Adam Kozak, on the new 500 series if you have time.
"AMD Corporate Vice President, Product Chief Technology Officer and Corporate Fellow, Joe Macri, flew in to brief us on the disruptive nature of the new AMD Ryzen processors. Join us for his full tech briefing!"
Here is some more Tech News from around the web:
- There's a patch to reinstate Windows 7 & 8.1 on Kaby Lake CPUs @ The Inquirer
- Guess who's back at Microsoft? Excel, Word creator Charles Simonyi @ The Register
- Intel to unveil Basin Falls, launch Coffee Lake ahead of schedule @ DigiTimes
- ThunderX3 TGC20 Series Gaming Chair Review @ NikKTech
Background and setup
A couple of weeks back, during the excitement surrounding the announcement of the GeForce GTX 1080 Ti graphics card, NVIDIA announced an update to its performance reporting project known as FCAT to support VR gaming. The updated iteration, FCAT VR as it is now called, gives us the first true ability to not only capture the performance of VR games and experiences, but the tools with which to measure and compare.
Watch ths video walk through of FCAT VR with me and NVIDIA's Tom Petersen
I already wrote an extensive preview of the tool and how it works during the announcement. I think it’s likely that many of you overlooked it with the noise from a new GPU, so I’m going to reproduce some of it here, with additions and updates. Everyone that attempts to understand the data we will be presenting in this story and all VR-based tests going forward should have a baseline understanding of the complexity of measuring VR games. Previous tools don’t tell the whole story, and even the part they do tell is often incomplete.
If you already know how FCAT VR works from reading the previous article, you can jump right to the beginning of our results here.
Measuring and validating those claims has proven to be a difficult task. Tools that we used in the era of standard PC gaming just don’t apply. Fraps is a well-known and well-understood tool for measuring frame rates and frame times utilized by countless reviewers and enthusiasts, but Fraps lacked the ability to tell the complete story of gaming performance and experience. NVIDIA introduced FCAT and we introduced Frame Rating back in 2013 to expand the capabilities that reviewers and consumers had access to. Using more sophisticated technique that includes direct capture of the graphics card output in uncompressed form, a software-based overlay applied to each frame being rendered, and post-process analyzation of that data, we could communicate the smoothness of a gaming experience, better articulating it to help gamers make purchasing decisions.
For VR though, those same tools just don’t cut it. Fraps is a non-starter as it measures frame rendering from the GPU point of view and completely misses the interaction between the graphics system and the VR runtime environment (OpenVR for Steam/Vive and OVR for Oculus). Because the rendering pipeline is drastically changed in the current VR integrations, what Fraps measures is completely different than the experience the user actually gets in the headset. Previous FCAT and Frame Rating methods were still viable but the tools and capture technology needed to be updated. The hardware capture products we used since 2013 were limited in their maximum bandwidth and the overlay software did not have the ability to “latch in” to VR-based games. Not only that but measuring frame drops, time warps, space warps and reprojections would be a significant hurdle without further development.
NVIDIA decided to undertake the task of rebuilding FCAT to work with VR. And while obviously the company is hoping that it will prove its claims of performance benefits for VR gaming, it should not be overlooked the investment in time and money spent on a project that is to be open sourced and free available to the media and the public.
NVIDIA FCAT VR is comprised of two different applications. The FCAT VR Capture tool runs on the PC being evaluated and has a similar appearance to other performance and timing capture utilities. It uses data from Oculus Event Tracing as a part of the Windows ETW and SteamVR’s performance API, along with NVIDIA driver stats when used on NVIDIA hardware to generate performance data. It will and does work perfectly well on any GPU vendor’s hardware though with the access to the VR vendor specific timing results.
Subject: General Tech, Graphics Cards | March 10, 2017 - 11:15 AM | Ryan Shrout
Tagged: video, tom petersen, pascal, nvidia, live, gtx 1080 ti, gtx, gp102, geforce
Our review of the GeForce GTX 1080 Ti 11GB graphics card is live and ready for consumption! Make sure you check it out before this afternoon's live stream!
Did you miss our GTX 1080 Ti Live Stream? Catch the reply below!
Ready your mind and body, it’s time for another GeForce GTX live stream hosted by PC Perspective’s Ryan Shrout and NVIDIA’s Tom Petersen. The general details about the GeForce GTX 1080 Ti graphics card are already official and based on the hype train and the response on social media, there is more than a little excitement.
On hand to talk about the new graphics card will be Tom Petersen, well known in our community. While the GTX 1080 Ti will be the flagship part of our live stream we will also be diving into the world of VR performance evaluation and how the new FCAT VR tool will help reviewers and standard enthusiast see where their systems stand in producing smooth, effective virtual reality gaming. We have done quite a few awesome live steams with Tom in the past, check them out if you haven't already.
NVIDIA GeForce GTX 1080 Ti and FCAT VR Live Stream
1pm PT / 4pm ET - March 9th
Need a reminder? Join our live mailing list!
The event will take place Thursday, March 9th at 4pm ET / 1pm PT at http://www.pcper.com/live. There you’ll be able to catch the live video stream as well as use our chat room to interact with the audience, asking questions for me and Tom to answer live.
Tom has a history of being both informative and entertaining and these live streaming events are always full of fun and technical information that you can get literally nowhere else. Previous streams have produced news as well – including statements on support for Adaptive Sync, release dates for displays and first-ever demos of triple display G-Sync functionality. You never know what’s going to happen or what will be said!
This just in fellow gamers: Tom is going to be providing a GeForce GTX 1080 Ti graphics card to give away during the live stream! We won't be able to ship it until the end of next week, but one lucky viewer of the live stream will be able to get their paws on the fastest graphics card we have ever tested!! Make sure you are scheduled to be here on March 9th at 1pm PT / 4pm ET!!
Win this beauty.
If you have questions, please leave them in the comments below and we'll look through them just before the start of the live stream. Of course you'll be able to tweet us questions @pcper and we'll be keeping an eye on the IRC chat as well for more inquiries. What do you want to know and hear from Tom or I?
So join us! Set your calendar for this coming Thursday at 4pm ET / 1pm PT and be here at PC Perspective to catch it. If you are a forgetful type of person, sign up for the PC Perspective Live mailing list that we use exclusively to notify users of upcoming live streaming events including these types of specials and our regular live podcast. I promise, no spam will be had!
Flagship Performance Gets Cheaper
UPDATE! If you missed our launch day live stream, you can find the reply below:
It’s a very interesting time in the world of PC gaming hardware. We just saw the release of AMD’s Ryzen processor platform that shook up the processor market for the first time in a decade, AMD’s Vega architecture has been given the brand name “Vega”, and the anticipation for the first high-end competitive part from AMD since Hawaii grows as well. AMD was seemingly able to take advantage of Intel’s slow innovation pace on the processor and it was hoping to do the same to NVIDIA on the GPU. NVIDIA’s product line has been dominant in the mid and high-end gaming market since the 900-series with the 10-series products further cementing the lead.
The most recent high end graphics card release came in the form of the updated Titan X based on the Pascal architecture. That was WAY back in August of 2016 – a full seven months ago! Since then we have seen very little change at the top end of the product lines and what little change we did see came from board vendors adding in technology and variation on the GTX 10-series.
Today we see the release of the new GeForce GTX 1080 Ti, a card that offers only a handful of noteworthy technological changes but instead is able to shake up the market by instigating pricing adjustments to make the performance offers more appealing, and lowering the price of everything else.
The GTX 1080 Ti GP102 GPU
I already wrote about the specifications of the GPU in the GTX 1080 Ti when it was announced last week, so here’s a simple recap.
|GTX 1080 Ti||Titan X (Pascal)||GTX 1080||GTX 980 Ti||TITAN X||GTX 980||R9 Fury X||R9 Fury||R9 Nano|
|GPU||GP102||GP102||GP104||GM200||GM200||GM204||Fiji XT||Fiji Pro||Fiji XT|
|Base Clock||1480 MHz||1417 MHz||1607 MHz||1000 MHz||1000 MHz||1126 MHz||1050 MHz||1000 MHz||up to 1000 MHz|
|Boost Clock||1582 MHz||1480 MHz||1733 MHz||1076 MHz||1089 MHz||1216 MHz||-||-||-|
|Memory Clock||11000 MHz||10000 MHz||10000 MHz||7000 MHz||7000 MHz||7000 MHz||500 MHz||500 MHz||500 MHz|
|Memory Interface||352-bit||384-bit G5X||256-bit G5X||384-bit||384-bit||256-bit||4096-bit (HBM)||4096-bit (HBM)||4096-bit (HBM)|
|Memory Bandwidth||484 GB/s||480 GB/s||320 GB/s||336 GB/s||336 GB/s||224 GB/s||512 GB/s||512 GB/s||512 GB/s|
|TDP||250 watts||250 watts||180 watts||250 watts||250 watts||165 watts||275 watts||275 watts||175 watts|
|Peak Compute||10.6 TFLOPS||10.1 TFLOPS||8.2 TFLOPS||5.63 TFLOPS||6.14 TFLOPS||4.61 TFLOPS||8.60 TFLOPS||7.20 TFLOPS||8.19 TFLOPS|
The GTX 1080 Ti looks a whole lot like the TITAN X launched in August of last year. Based on the 12B transistor GP102 chip, the new GTX 1080 Ti will have 3,584 CUDA core with a 1.60 GHz Boost clock. That gives it the same processor count as Titan X but with a slightly higher clock speed which should make the new GTX 1080 Ti slightly faster by at least a few percentage points and has a 4.7% edge in base clock compute capability. It has 28 SMs, 28 geometry units, 224 texture units.
Interestingly, the memory system on the GTX 1080 Ti gets adjusted – NVIDIA has disabled a single 32-bit memory controller to give the card a total of 352-bit wide bus and an odd-sounding 11GB memory capacity. The ROP count also drops to 88 units. Speaking of 11, the memory clock on the G5X implementation on GTX 1080 Ti will now run at 11 Gbps, a boost available to NVIDIA thanks to a chip revision from Micron and improvements to equalization and reverse signal distortion.
The move from 12GB of memory on the GP102-based Titan X to 11GB on the GTX 1080 Ti is an interesting move, and evokes memories of the GTX 970 fiasco where NVIDIA disabled a portion of that memory controller but left the memory that would have resided on it ON the board. At that point, what behaved as 3.5GB of memory at one speed and 500 MB at another speed, was the wrong move to make. But releasing the GTX 970 with "3.5GB" of memory would have seemed odd too. NVIDIA is not making the same mistake, instead building the GTX 1080 Ti with 11GB out the gate.
Subject: Processors | March 2, 2017 - 03:08 PM | Jeremy Hellstrom
Tagged: Ryzen 1700X, Zen, x370, video, ryzen, amd
Having started your journey with Ryan's quick overview of the performance of the 1800X and anxiously awaiting our further coverage now that we have both the parts and the time to test them you might want to take a peek at some other coverage. [H]ard|OCP tested the processor which many may be looking at due to the more affordable pricing, the Ryzen 1700X. Their test system is based on a Gigabyte A370-Gaming 5 with 16GB of Corsair Vengeance DDR4-3600 which ran at 2933MHz during testing; Kyle reached out to vendors who assured him an update will make 3GHz reachable will arrive soon. Part of their testing focused on VR performance, so make sure to check out the full article.
"Saying that we have waited for a long time for a "real" CPU out of AMD would be a gross misunderstatement, but today AMD looks to remedy that. We are now offered up a new CPU that carries the branding name of Ryzen. Has AMD risen from the CPU graveyard? You be the judge after looking at the data."
Here are some more Processor articles from around the web:
- AMD's Ryzen 7 1800X, Ryzen 7 1700X, and Ryzen 7 1700 CPUs @ The Tech Report
- AMD’s moment of Zen: Finally, an architecture that can compete @ Ars Technica
- AMD Ryzen 7 1800X CPU Review: The Wait is Over @ Modders-Inc
- The AMD Ryzen 7 1800X Performance Review @ Hardware Canucks
- The AMD Ryzen 7 Performance In 3D Rendering & Video Transcoding @ TechARP
- AMD Ryzen 7 1800X @ Kitguru
- AMD Ryzen 7 1800X @ Guru of 3D
- AMD Ryzen 7 1800X, 1700X, and 1700 Processor Review @ OCC
- AMD Ryzen 7 1800X Linux Benchmarks @ Phoronix
AMD Ryzen 7 Processor Specifications
It’s finally here and its finally time to talk about. The AMD Ryzen processor is being released onto the world and based on the buildup of excitement over the last week or so since pre-orders began, details on just how Ryzen performs relative to Intel’s mainstream and enthusiast processors are a hot commodity. While leaks have been surfacing for months and details seem to be streaming out from those not bound to the same restrictions we have been, I think you are going to find our analysis of the Ryzen 7 1800X processor to be quite interesting and maybe a little different as well.
Honestly, there isn’t much that has been left to the imagination about Ryzen, its chipsets, pricing, etc. with the slow trickle of information that AMD has been sending out since before CES in January. We know about the specifications, we know about the architecture, we know about the positioning; and while I will definitely recap most of that information here, the real focus is going to be on raw numbers. Benchmarks are what we are targeting with today’s story.
Let’s dive right in.
The Zen Architecture – Foundation for Ryzen
Actually, as it turns out, in typical Josh Walrath fashion, he wrote too much about the AMD Zen architecture to fit into this page. So, instead, you'll find his complete analysis of AMD's new baby right here: AMD Zen Architecture Overview: Focus on Ryzen
AMD Ryzen 7 Processor Specifications
Though we have already detailed the most important specifications for the new AMD Ryzen processors when the preorders went live, its worth touching on them again and reemphasizing the important ones.
|Ryzen 7 1800X||Ryzen 7 1700X||Ryzen 7 1700||Core i7-6900K||Core i7-6800K||Core i7-7700K||Core i5-7600K||Core i7-6700K|
|Architecture||Zen||Zen||Zen||Broadwell-E||Broadwell-E||Kaby Lake||Kaby Lake||Skylake|
|Base Clock||3.6 GHz||3.4 GHz||3.0 GHz||3.2 GHz||3.4 GHz||4.2 GHz||3.8 GHz||4.0 GHz|
|Turbo/Boost Clock||4.0 GHz||3.8 GHz||3.7 GHz||3.7 GHz||3.6 GHz||4.5 GHz||4.2 GHz||4.2 GHz|
|TDP||95 watts||95 watts||65 watts||140 watts||140 watts||91 watts||91 watts||91 watts|
All three of the currently announced Ryzen processors are 8-core, 16-thread designs, matching the Core i7-6900K from Intel in that regard. Though Intel does have a 10-core part branded for consumers, it comes in at a significantly higher price point (over $1500 still). The clock speeds of Ryzen are competitive with the Broadwell-E platform options though are clearly behind the curve when it comes the clock capabilities of Kaby Lake and Skylake. With admittedly lower IPC than Kaby Lake, Zen will struggle in any purely single threaded workload with as much as 500 MHz deficit in clock rate.
- Ryzen 7 1800X - $499 - Amazon.com
- Ryzen 7 1700X - $399 - Amazon.com
- Ryzen 7 1700 - $329 - Amazon.com
- Amazon.com Ryzen Landing Page
- ASUS ROG Crosshair VI Hero - $254 - Amazon.com
- ASUS Prime X370 Pro - $169 - Amazon.com
- ASUS Prime B350-Plus - $99 - Amazon.com
- ASUS Prime B350M-A - $89 - Amazon.com
One interesting deviation from Intel's designs that Ryzen gets is a more granular boost capability. AMD Ryzen CPUs will be able move between processor states in 25 MHz increments while Intel is currently limited to 100 MHz. If implemented correctly and effectively through SenseMI, this allows Ryzen to get 25-75 MHz of additional performance in a scenario where it was too thermally constrainted to hit the next 100 MHz step.
XFR (Extended Frequency Range), supported on the Ryzen 7 1800X and 1700X (hence the "X"), "lifts the maximum Precision Boost frequency beyond ordinary limits in the presence of premium systems and processor cooling." The story goes, that if you have better than average cooling, the 1800X will be able to scale up to 4.1 GHz in some instances for some undetermined amount of time. The better the cooling, the longer it can operate in XFR. While this was originally pitched to us as a game-changing feature that bring extreme advantages to water cooling enthusiasts, it seems it was scaled back for the initial release. Only getting 100 MHz performance increase, in the best case result, seems a bit more like technology for technology's sake rather than offering new capabilities for consumers.
Ryzen integrates a dual channel DDR4 memory controller with speeds up to 2400 MHz, matching what Intel can do on Kaby Lake. Broadwell-E has the advantage with a quad-channel controller but how useful that ends of being will be interesting to see as we step through our performance testing.
One area of interest is the TDP ratings. AMD and Intel have very different views on how this is calculated. Intel has made this the maximum power draw of the processor while AMD sees it as a target for thermal dissipation over time. This means that under stock settings the Core i7-7700K will not draw more than 91 watts and the Core i7-6900K will not draw more than 140 watts. And in our testing, they are well under those ratings most of the time, whenever AVX code is not being operated. AMD’s 95-watt rating on the Ryzen 1800X though will very often be exceed, and our power testing proves that out. The logic is that a cooler with a 95-watt rating and the behavior of thermal propagation give the cooling system time to catch up. (Interestingly, this is the philosophy Intel has taken with its Kaby Lake mobile processors.)
Obviously the most important line here for many of you is the price. The Core i7-6900K is the lowest priced 8C/16T option from Intel for consumers at $1050. The Ryzen R7 1800X has a sticker price less than half of that, at $499. The R7 1700X vs Core i7-6800K match is interesting as well, where the AMD CPU will sell for $399 versus $450 for the 6800K. However, the 6800K only has 6-cores and 12-threads, giving the Ryzen part an instead 25% boost in multi-threaded performance. The 7700K and R7 1700 battle will be interesting as well, with a 4-core difference in capability and a $30 price advantage to AMD.
- Corsair Bulldog 2.0 (includes case, PSU, MB and CPU cooler)
- Intel Core i7-7700K
- 16GB Corsair Vengeance DDR4
- Corsair Z270 Motherboard mini ITX
- Corsair Hydro GTX 1080
- 480GB Neutron GTX SSD
- 600 watt Corsair PSU
The barebones kit starts at $399 through Corsair.com and includes the case, the motherboard, CPU cooler and 600-watt power supply. Not a bad price for those components!
You won't find any specific benchmarks in the video above, but you will find some impressions playing Resident Evil 7 in HDR mode at 4K resolution with the specs above, all on an LG OLED display. (Hint: it's awesome.)
Get your brains ready
Just before the weekend, Josh and I got a chance to speak with David Kanter about the AMD Zen architecture and what it might mean for the Ryzen processor due out in less than a month. For those of you not familiar with David and his work, he is an analyst and consultant on processor architectrure and design through Real World Tech while also serving as a writer and analyst for the Microprocessor Report as part of the Linley Group. If you want to see a discussion forum that focuses on architecture at an incredibly detailed level, the Real World Tech forum will have you covered - it's an impressive place to learn.
David was kind enough to spend an hour with us to talk about a recently-made-public report he wrote on Zen. It's definitely a discussion that dives into details most articles and stories on Zen don't broach, so be prepared to do some pausing and Googling phrases and technologies you may not be familiar with. Still, for any technology enthusiast that wants to get an expert's opinion on how Zen compares to Intel Skylake and how Ryzen might fare when its released this year, you won't want to miss it.
Subject: Graphics Cards | January 18, 2017 - 08:43 PM | Sebastian Peak
Tagged: video, unlock, shaders, shader cores, sapphire, radeon, Polaris, graphics, gpu, gaming, card, bios, amd, 1024
As reported by WCCFtech, AMD partner Sapphire has a new 1024 stream processor version of the RX460 listed on their site (Chinese language), and this product reveal of course comes after it became known that RX460 graphics cards had the potential to have their stream processor count unlocked from 896 to 1024 via BIOS update.
Sapphire RX460 1024SP 4G D5 Ultra Platinum OC (image credit: Sapphire)
The Sapphire RX460 1024SP edition offers a full Polaris 11 core operating at 1250 MHz, and it otherwise matches the specifications of a stock RX460 graphics card. Whether this product will be available outside of China is unknown, as is the potential pricing model should it be available in the USA. A 4GB Radeon RX460 retails for $99, while the current step-up option is the RX470, which doubles up on this 1024SP RX460's shader count with 2048, with a price increase of about 70% ($169).
AMD Polaris GCN 4.0 GPU lineup (Credit WCCFtech)
As you may note from the chart above, there is also an RX470D option between these cards that features 1792 shaders, though this option is also China-only.
Performance and Impressions
This content was sponsored by AMD.
Last week in part 1 of our look at the Radeon RX 460 as a budget gaming GPU, I detailed our progress through component selection. Centered around an XFX 2GB version of the Radeon RX 460, we built a machine using an Intel Core i3-6100, ASUS H110M motherboard, 8GB of DDR4 memory, both an SSD and a HDD, as well as an EVGA power supply and Corsair chassis. Part 1 discussed the reasons for our hardware selections as well as an unboxing and preview of the giveaway to come.
In today's short write up and video, I will discuss my impressions of the system overall as well as touch on the performance in a handful of games. Despite the low the price, and despite the budget moniker attributed to this build, a budding PC gamer or converted console gamer will find plenty of capability in this system.
Let's quickly recap the components making up our RX 460 budget build.
Our Radeon RX 460 Build
|Budget Radeon RX 460 Build|
|Processor||Intel Core i3-6100 - $109|
|Cooler||CRYORIG M9i - $19|
|Motherboard||ASUS H110M-A/M.2 - $54|
|Memory||2 x 4GB Crucial Ballistix DDR4-2400 - $51|
|Graphics Card||XFX Radeon RX 460 2GB - $98|
|Storage||240GB Sandisk SSD Plus - $68
1TB Western Digital Blue - $49
|Case||Corsair Carbide Series 88R - $49|
|Power Supply||EVGA 500 Watt - $42|
|Monitor||Nixues VUE24A 1080p 144Hz FreeSync - $251|
|Total Price||$549 on Amazon; $799 with monitor on Amazon|
For just $549 I was able to create shopping list of hardware that provides very impressive performance for the investment.
The completed system is damn nice looking, if I do say so myself. The Corsair Carbide 88R case sports a matte black finish with a large window to peer in at the hardware contained within. Coupled with the Nixeus FreeSync display and some Logitech G mouse and keyboard hardware we love, this is a configuration that any PC gamer would be proud to display.