Subject: Graphics Cards | August 31, 2016 - 06:09 PM | Jeremy Hellstrom
Tagged: radeon 16.8.3, crimson, amd
Similar to the release yesterday from NVIDIA, AMD's Crimson 16.8.3 hotfix has been timed for release with Deus Ex: Mankind Divided and the Battlefield 1 Beta. This particular update will add Crossfire profiles for both games and also fixes an unfortunate bug from the previous release which occasionally caused a static, albeit colourful screen over top of your game. Unfortunately, the Gaming Evolved overlay launch problem still exists, as does the workaround.
If you do plan on submitting bug reports whilst trying out the new Battlefield, please do head on over and upgrade so the devs are not working on issues which are already resolved.
Subject: Graphics Cards | August 31, 2016 - 05:38 PM | Jeremy Hellstrom
Tagged: amd, radeon, open source, linux, RADV, graphics driver
As of yet, AMD has not delivered the open-source Radeon Vulkan driver originally slated to arrive early this year, instead relying on their current proprietary driver. That has not stopped a team of plucky programmers from creating RADV, utilizing the existing AMDGPU LLVM compiler back-end and Intel's work with Mesa NIR intermediate representation to pass to LLVM IR. You won't get Gallium3D support, ironically RADV is too close to the metal for that to work.
Phoronix just wrapped up testing of the new driver, looking at performance for The Talos Principal and DOTA 2, contrasting the open source driver with the closed source AMDGPU-PRO. RADV is not quite 4k ready but at lower resolutions it proves very competitive.
"With word coming out last week that the RADV open-source Vulkan driver can now render Dota 2 correctly, I've been running some tests the past few days of this RADV Vulkan driver compared to AMD's official (but currently closed-source) Vulkan driver bundled with the AMDGPU-PRO Vulkan driver."
Here are some more Graphics Card articles from around the web:
- Windows 10 vs. Linux Radeon Software Performance @ Phoronix
- PowerColor Red Devil RX 480 8GB Review @ OCC
- XFX Radeon RX 460 Double Dissipation @ [H]ard|OCP
- NVIDIA GeForce GTX 1060 Founders Edition Review @ Neoseeker
Subject: General Tech | August 31, 2016 - 01:40 PM | Jeremy Hellstrom
Tagged: deus ex: mankind divided, nvidia, amd
It was not just Adam Jensen's cyberware that was updated since 2012, we have also seen new computer hardware and software features added to our gaming machines. [H]ard|OCP fired up the new Deus Ex to test a long list of features including tessellation, subsurface scattering, cloth physics, ambient occlusion, contact hardening shadows, parallax occlusion mapping, volumetric lighting, screenspace reflections, and chromatic aberration. They chose the three new NVIDIA cards as well as the two AMD cards. As of yet there is no DX12 support but a patch is planned but there are still some interesting findings; this game loves huge tracts of VRAM and they also found that the default AA setting may not be your best choice.
"Deus Ex: Mankind Divided is released, we take a look at performance and image quality. We will compare performance between GTX 1080, GTX 1070, GTX 1060, Radeon RX 480, and Radeon RX 470. We will also look at image quality and talk about our experiences with each video card and what is playable in DE:MD."
Here is some more Tech News from around the web:
- Deus Ex: Mankind Divided Game Analysis @ Kitguru
- NVIDIA Announces Vault 1080 Mod For Fallout 4 @ [H]ard|OCP
- Leak-o! Duke Nukem 3D: World Tour Rumoured @ Rock, Paper, SHOTGUN
- AMD & NVIDIA GPU VR Performance: Project Cars @ [H]ard|OCP
- Over The Plop: Battlefield 1 DLC Season Pass Detailed @ Rock, Paper, SHOTGUN
- Magic And Myth In A Post-War World: Tyranny @ Rock, Paper, SHOTGUN
- In Case Of Emergency, Release Raptor Pulled From Sale @ Rock, Paper, SHOTGUN
- Humble Sierra Bundle: Space Kings Police Quest for Glory etc @ HEXUS
Subject: General Tech | August 25, 2016 - 10:51 AM | Ryan Shrout
Tagged: Zen, video, seasonic, Polaris, podcast, Omen, nvidia, market share, Lightning, hp, gtx 1060 3gb, gpu, brix, Audeze, asus, architecture, amd
PC Perspective Podcast #414 - 08/25/2016
Join us this week as we discuss the newly released architecture details of AMD Zen, Audeze headphones, AMD market share gains and more!
The URL for the podcast is: http://pcper.com/podcast - Share with your friends!
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Hosts: Ryan Shrout, Allyn Malventano, Josh Walrath and Jeremy Hellstrom
Week in Review:
News items of interest:
Hardware/Software Picks of the Week
Subject: Graphics Cards | August 24, 2016 - 10:34 AM | Ryan Shrout
Tagged: nvidia, market share, jpr, jon peddie, amd
As reported by both Mercury Research and now by Jon Peddie Research, in a graphics add-in card market that dropped dramatically in Q2 2016 in terms of total units shipped, AMD has gained significant market share against NVIDIA.
|GPU Supplier||Market share this QTR||Market share last QTR||Market share last year|
Source: Jon Peddie Research
Last year at this time, AMD was sitting at 18% market share in terms of units sold, an absolutely dismal result compared to NVIDIA's dominating 81.9%. Over the last couple of quarters we have seen AMD gain in this space, and keeping in mind that Q2 2016 does not include sales of AMD's new Polaris-based graphics cards like the Radeon RX 480, the jump to 29.9% is a big move for the company. As a result, NVIDIA falls back to 70% market share for the quarter, which is still a significant lead over the AMD.
Numbers like that shouldn't be taken lightly - for AMD to gain 7 points of market share in a single quarter indicates a substantial shift in the market. This includes all add-in cards: budget, mainstream, enthusiast and even workstation class products. One report I am received says that NVIDIA card sales specifically dropped off in Q2, though the exact reason why isn't known, and as a kind of defacto result, AMD gained sales share.
There are several other factors to watch with this data however. First, the quarterly drop in graphics card sales was -20% in Q2 when compared to Q1. That is well above the average seasonal Q1-Q2 drop, which JPR claims to be -9.7%. Much of this sell through decrease is likely due to consumers expecting releases of both NVIDIA Pascal GPUs and AMD Polaris GPUs, stalling sales as consumers delay their purchases.
The NVIDIA GeForce GTX 1080 launched on May 17th and the GTX 1070 on May 29th. The company has made very bold claims about product sales of Pascal parts so I am honestly very surprised that the overall market would drop the way it did in Q2 and that NVIDIA would fall behind AMD as much as it has. Q3 2016 may be the defining time for both GPU vendors however as it will show the results of the work put into both new architectures and both new product lines. NVIDIA reported record profits recently so it will be interesting to see how that matches up to unit sales.
Clean Sheet and New Focus
It is no secret that AMD has been struggling for some time. The company has had success through the years, but it seems that the last decade has been somewhat bleak in terms of competitive advantages. The company has certainly made an impact in throughout the decades with their 486 products, K6, the original Athlon, and the industry changing Athlon 64. Since that time we have had a couple of bright spots with the Phenom II being far more competitive than expected, and the introduction of very solid graphics performance in their APUs.
Sadly for AMD their investment in the “Bulldozer” architecture was misplaced for where the industry was heading. While we certainly see far more software support for multi-threaded CPUs, IPC is still extremely important for most workloads. The original Bulldozer was somewhat rushed to market and was not fully optimized, while the “Piledriver” based Vishera products fixed many of these issues we have not seen the non-APU products updated to the latest Steamroller and Excavator architectures. The non-APU desktop market has been served for the past four years with 32nm PD-SOI based parts that utilize a rebranded chipset base that has not changed since 2010.
Four years ago AMD decided to change course entirely with their desktop and server CPUs. Instead of evolving the “Bulldozer” style architecture featuring CMT (Core Multi-Threading) they were going to do a clean sheet design that focused on efficiency, IPC, and scalability. While Bulldozer certainly could scale the thread count fairly effectively, the overall performance targets and clockspeeds needed to compete with Intel were just not feasible considering the challenges of process technology. AMD brought back Jim Keller to lead this effort, an industry veteran with a huge amount of experience across multiple architectures. Zen was born.
Hot Chips 28
This year’s Hot Chips is the first deep dive that we have received about the features of the Zen architecture. Mike Clark is taking us through all of the changes and advances that we can expect with the upcoming Zen products.
Zen is a clean sheet design that borrows very little from previous architectures. This is not to say that concepts that worked well in previous architectures were not revisited and optimized, but the overall floorplan has changed dramatically from what we have seen in the past. AMD did not stand still with their Bulldozer products, and the latest Excavator core does improve upon the power consumption and performance of the original. This evolution was simply not enough considering market pressures and Intel’s steady improvement of their core architecture year upon year. Zen was designed to significantly improve IPC and AMD claims that this product has a whopping 40% increase in IPC (instructions per clock) from the latest Excavator core.
AMD also has focused on scaling the Zen architecture from low power envelopes up to server level TDPs. The company looks to have pushed down the top end power envelope of Zen from the 125+ watts of Bulldozer/Vishera into the more acceptable 95 to 100 watt range. This also has allowed them to scale Zen down to the 15 to 25 watt TDP levels without sacrificing performance or overall efficiency. Most architectures have sweet spots where they tend to perform best. Vishera for example could scale nicely from 95 to 220 watts, but the design did not translate well into sub-65 watt envelopes. Excavator based “Carrizo” products on the other hand could scale from 15 watts to 65 watts without real problems, but became terribly inefficient above 65 watts with increased clockspeeds. Zen looks to address these differences by being able to scale from sub-25 watt TDPs up to 95 or 100. In theory this should allow AMD to simplify their product stack by offering a common architecture across multiple platforms.
Subject: Graphics Cards | August 23, 2016 - 01:43 PM | Jeremy Hellstrom
Tagged: amd, nvidia, Tilt Brush, VR
[H]ard|OCP continues their foray into testing VR applications, this time moving away from games to try out the rather impressive Tilt Brush VR drawing application from Google. If you have yet to see this software in action it is rather incredible, although you do still require an artist's talent and practical skills to create true 3D masterpieces.
Artisic merit may not be [H]'s strong suite but testing how well a GPU can power VR applications certainly lies within their bailiwick. Once again they tested five NVIDIA GPUs and a pair of AMD's for dropped frames and reprojection caused by a drop in FPS.
"We are changing gears a bit with our VR Performance coverage and looking at an application that is not as GPU-intensive as those we have looked at in the recent past. Google's Tilt Brush is a virtual reality application that makes use of the HTC Vive head mounted display and its motion controllers to allow you to paint in 3D space."
Here are some more Graphics Card articles from around the web:
- PowerColor Red Devil RX 470 Overclocking @ [H]ard|OCP
- MSI GeForce GTX 1060 OC 6 GB @ techPowerUp
- ASUS STRIX GAMING GTX 1070 OC @ eTeknix
- EVGA GeForce GTX 1070 FTW GAMING ACX 3.0 @ Bjorn3d
Why Two 4GB GPUs Isn't Necessarily 8GB
We're trying something new here at PC Perspective. Some topics are fairly difficult to explain cleanly without accompanying images. We also like to go fairly deep into specific topics, so we're hoping that we can provide educational cartoons that explain these issues.
This pilot episode is about load-balancing and memory management in multi-GPU configurations. There seems to be a lot of confusion around what was (and was not) possible with DirectX 11 and OpenGL, and even more confusion about what DirectX 12, Mantle, and Vulkan allow developers to do. It highlights three different load-balancing algorithms, and even briefly mentions what LucidLogix was attempting to accomplish almost ten years ago.
If you like it, and want to see more, please share and support us on Patreon. We're putting this out not knowing if it's popular enough to be sustainable. The best way to see more of this is to share!
Subject: Processors | August 22, 2016 - 05:37 PM | Jeremy Hellstrom
Tagged: amd, a10-7870K
Leaving aside the questionable naming to instead focus on the improved cooler on this ~$130 APU from AMD. Neoseeker fired up the fun sized, 125W rated cooler on top of the A10-7870K and were pleasantly surprised at the lack of noise even under load. Encouraged by the performance they overclocked the chip by 500MHz to 4.4GHz and were rewarded with a stable and still very quiet system. The review focuses more the improvements the new cooler offers as opposed to the APU itself, which has not changed. Check out the review if you are considering a lower cost system that only speaks when spoken to.
"In order to find out just how much better the 125W thermal solution will perform, I am going to test the A10-7870K APU mounted on a Gigabyte F2A88X-UP4 motherboard provided by AMD with a set of 16 GB (2 x 8) DDR3 RAM modules set at 2133 MHz speed. I will then run thermal and fan speed tests so a comparison of the results will provide a meaningful data set to compare the near-silent 125W cooler to an older model AMD cooling solution."
Here are some more Processor articles from around the web:
Subject: Graphics Cards | August 18, 2016 - 07:58 PM | Scott Michaud
Tagged: amd, TrueAudio, trueaudio next
Using a GPU for audio makes a lot of sense. That said, the original TrueAudio was not really about that, and it didn't really take off. The API was only implemented in a handful of titles, and it required dedicated hardware that they have since removed from their latest architectures. It was not about using the extra horsepower of the GPU to simulate sound, although they did have ideas for “sound shaders” in the original TrueAudio.
TrueAudio Next, on the other hand, is an SDK that is part of AMD's LiquidVR package. It is based around OpenCL; specifically, it uses AMD's open-source FireRays library to trace the ways that audio can move from source to receiver, including reflections. For high-frequency audio, this is a good assumption, and that range of frequencies are more useful for positional awareness in VR, anyway.
Basically, TrueAudio Next has very little to do with the original.
Interestingly, AMD is providing an interface for TrueAudio Next to reserve compute units, but optionally (and under NDA). This allows audio processing to be unhooked from the video frame rate, provided that the CPU can keep both fed with actual game data. Since audio is typically a secondary thread, it could be ready to send sound calls at any moment. Various existing portions of asynchronous compute could help with this, but allowing developers to wholly reserve a fraction of the GPU should remove the issue entirely. That said, when I was working on a similar project in WebCL, I was looking to the integrated GPU, because it's there and it's idle, so why not? I would assume that, in actual usage, CU reservation would only be enabled if an AMD GPU is the only device installed.
Anywho, if you're interested, then be sure to check out AMD's other post on it, too.