AMD squeezes 240GB onto a Radeon

Subject: Storage | August 19, 2014 - 01:20 PM |
Tagged: amd, R7 240, ssd, radeon r7, barefoot 3, 19nm, toshiba mlc

We have seen the Barefoot 3 controller that AMD used in their first SSD before in OCZ's Vector 150, but not exactly like this.  The controller has been optimized to work with Toshiba's 19nm and is clocked slightly higher than the Vertex, though AMD will not say by how much.  That may account for the reduction in daily writes to 30GB/day and the warranty period to 4 years but as it is OCZ that is handling the warranty it is hard to determine the exact reasoning at this point.  On the plus side the MSRP is also reduced by $28 to $164 which still falls short of reaching the magic $0.50/GB mark.  The Tech Report tested the 240GB model here, as with other SSDs you can expect the 120GB to be slightly slower and the 480GB model to perform slightly faster.

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"AMD is getting into the storage business. The Radeon R7 SSD combines OCZ's Barefoot 3 controller with Toshiba's 19-nm MLC NAND, custom firmware, and a snazzy new sticker. We take a quick look to see what's what."

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Storage

Khronos Announces "Next" OpenGL & Releases OpenGL 4.5

Subject: General Tech, Graphics Cards, Shows and Expos | August 15, 2014 - 08:33 PM |
Tagged: siggraph 2014, Siggraph, OpenGL Next, opengl 4.5, opengl, nvidia, Mantle, Khronos, Intel, DirectX 12, amd

Let's be clear: there are two stories here. The first is the release of OpenGL 4.5 and the second is the announcement of the "Next Generation OpenGL Initiative". They both occur on the same press release, but they are two, different statements.

OpenGL 4.5 Released

OpenGL 4.5 expands the core specification with a few extensions. Compatible hardware, with OpenGL 4.5 drivers, will be guaranteed to support these. This includes features like direct_state_access, which allows accessing objects in a context without binding to it, and support of OpenGL ES3.1 features that are traditionally missing from OpenGL 4, which allows easier porting of OpenGL ES3.1 applications to OpenGL.

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It also adds a few new extensions as an option:

ARB_pipeline_statistics_query lets a developer ask the GPU what it has been doing. This could be useful for "profiling" an application (list completed work to identify optimization points).

ARB_sparse_buffer allows developers to perform calculations on pieces of generic buffers, without loading it all into memory. This is similar to ARB_sparse_textures... except that those are for textures. Buffers are useful for things like vertex data (and so forth).

ARB_transform_feedback_overflow_query is apparently designed to let developers choose whether or not to draw objects based on whether the buffer is overflowed. I might be wrong, but it seems like this would be useful for deciding whether or not to draw objects generated by geometry shaders.

KHR_blend_equation_advanced allows new blending equations between objects. If you use Photoshop, this would be "multiply", "screen", "darken", "lighten", "difference", and so forth. On NVIDIA's side, this will be directly supported on Maxwell and Tegra K1 (and later). Fermi and Kepler will support the functionality, but the driver will perform the calculations with shaders. AMD has yet to comment, as far as I can tell.

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Image from NVIDIA GTC Presentation

If you are a developer, NVIDIA has launched 340.65 (340.23.01 for Linux) beta drivers for developers. If you are not looking to create OpenGL 4.5 applications, do not get this driver. You really should not have any use for it, at all.

Next Generation OpenGL Initiative Announced

The Khronos Group has also announced "a call for participation" to outline a new specification for graphics and compute. They want it to allow developers explicit control over CPU and GPU tasks, be multithreaded, have minimal overhead, have a common shader language, and "rigorous conformance testing". This sounds a lot like the design goals of Mantle (and what we know of DirectX 12).

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And really, from what I hear and understand, that is what OpenGL needs at this point. Graphics cards look nothing like they did a decade ago (or over two decades ago). They each have very similar interfaces and data structures, even if their fundamental architectures vary greatly. If we can draw a line in the sand, legacy APIs can be supported but not optimized heavily by the drivers. After a short time, available performance for legacy applications would be so high that it wouldn't matter, as long as they continue to run.

Add to it, next-generation drivers should be significantly easier to develop, considering the reduced error checking (and other responsibilities). As I said on Intel's DirectX 12 story, it is still unclear whether it will lead to enough performance increase to make most optimizations, such as those which increase workload or developer effort in exchange for queuing fewer GPU commands, unnecessary. We will need to wait for game developers to use it for a bit before we know.

Prying OpenGL to slip a little Mantle inside

Subject: General Tech | August 15, 2014 - 01:09 PM |
Tagged: amd, Mantle, opengl, OpenGL Next

Along with his announcements about FreeSync, Richard Huddy also discussed OpenGL Next and its relationship with Mantle and the role it played in DirectX 12's development.  AMD has given Chronos Group, the developers of OpenGL, complete access to Mantle to help them integrate it into future versions of the API starting with OpenGL Next.  He also discussed the advantages of Mantle over DirectX, citing AMD's ability to update it much more frequently than Intel has done with DX.  With over 75 developers working on titles that take advantage of Mantle the interest is definitely there but it is uncertain if devs will actually benefit from an API which updates at a pace faster than a game can be developed.  Read on at The Tech Report.

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"At Siggraph yesterday, AMD's Richard Huddy gave us an update on Mantle, and he also revealed some interesting details about AMD's role in the development of the next-gen OpenGL API."

Here is some more Tech News from around the web:

Tech Talk

AMD Catalyst 14.7 Release Candidate 3

Subject: Graphics Cards | August 14, 2014 - 07:20 PM |
Tagged: catalyst 14.7 RC3, beta, amd

A new Catalyst Release Candidate has arrived and as with the previous driver it no longer supports Windows 8.0 or the WDDM 1.2 driver, so upgrade to Win 7 or Win 8.1 before installing please.  AMD will eventually release a driver which supports WDDM 1.1 under Win 8.0 for those who do not upgrade.

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Feature Highlights of the AMD Catalyst 14.7​ RC3 Driver for Windows Includes all improvements found in the AMD Catalyst 14.7 RC driver

  • Display interface enhancements to improve 4k monitor performance and reduce flickering.
  • Improvements apply to the following products: ​
    • AMD Radeon R9 290 Series
    • AMD Radeon R9 270 Series
    • AMD Radeon HD 7800 Series​ ​​
  • Even with these improvements, cable quality and other system variables can affect 4k performance. AMD recommends using DisplayPort 1.2 HBR2 certified cables with a length of 2m (~6 ft) or less when driving 4K monitors.​
  • Wildstar: AMD Crossfire profile support
  • Lichdom: Single GPU and Multi-GPU performance enhancements
  • Watch Dogs: Smoother gameplay on single GPU and Multi-GPU configurations​

Feature Highlights of the AMD Catalyst 14.7​ RC Driver for Windows

  • Includes all improvements found in the AMD Catalyst 14.6 RC driver
    • AMD ​CrossFire and AMD Radeon Dual Graphics profile update for Plants vs. Zombies​​​
    • Assassin's Creed IV - improved CrossFire scaling (3840x2160 High Settings) up to 93%
    • Collaboration with AOC has identified non-standard display timings as the root cause of 60Hz SST flickering exhibited by the AOC U2868PQU panel on certain AMD Radeon graphics cards.
    • A software workaround has been implemented in AMD Catalyst 14.7 RC driver to resolve the display timing issues with this display. Users are further encouraged to obtain newer display firmware from AOC that will resolve flickering at its origin.
    • Users are additionally advised to utilize DisplayPort-certified cables to ensure the integrity of the DisplayPort data connection.​​​

Feature Highlights of the AMD Catalyst 14.6 RC Driver for Windows

  • Plants vs. Zombies (Direct3D performance improvements):
    • AMD Radeon R9 290X - 1920x1080 Ultra – improves up to 11%
    • AMD Radeon R9 290X - 2560x1600 Ultra – improves up to 15%
    • AMD Radeon R9 290X CrossFire configuration (3840x2160 Ultra) - 92% scaling
  • 3DMark Sky Diver improvements:
    • AMD A4-6300 – improves up to 4%
    • Enables AMD Dual Graphics/AMD CrossFire support
  • Grid Auto Sport: AMD CrossFire profile
  • Wildstar: Power Xpress profile
    • Performance improvements to improve smoothness of application
    • Performance improves up to 24% at 2560x1600 on the AMD Radeon R9 and R7 Series of products for both single GPU and multi-GPU configurations.
  • Watch Dogs: AMD CrossFire – Frame pacing improvements
  • Battlefield Hardline Beta: AMD CrossFire profile

Known Issues

  • Running Watch Dogs with a R9 280X CrossFire configuration may result in the application running in CrossFire software compositing mode
  • Enabling Temporal SMAA in a CrossFire configuration when playing Watch Dogs will result in flickering
  • AMD CrossFire configurations with AMD Eyefinity enabled will see instability with BattleField 4 or Thief when running Mantle
  • Catalyst Install Manager text is covered by Express/Custom radio button text
  • Express Uninstall does not remove C:\Program Files\(AMD or ATI) folder
Source: AMD

Richard Huddy Discusses FreeSync Availability Timeframes

Subject: General Tech, Displays | August 14, 2014 - 04:59 PM |
Tagged: amd, freesync, g-sync, Siggraph, siggraph 2014

At SIGGRAPH, Richard Huddy of AMD announced the release windows of FreeSync, their adaptive refresh rate technology, to The Tech Report. Compatible monitors will begin sampling "as early as" September. Actual products are expected to ship to consumers in early 2015. Apparently, more than one display vendor is working on support, although names and vendor-specific release windows are unannounced.

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As for cost of implementation, Richard Huddy believes that the added cost should be no more than $10-20 USD (to the manufacturer). Of course, the final price to end-users cannot be derived from this - that depends on how quickly the display vendor expects to sell product, profit margins, their willingness to push new technology, competition, and so forth.

If you want to take full advantage of FreeSync, you will need a compatible GPU (look for "gaming" support in AMD's official FreeSync compatibility list). All future AMD GPUs are expected to support the technology.

Source: Tech Report

Podcast #313 - New Kaveri APUs, ASUS ROG Swift G-Sync Monitor, Intel Core M Processors and more!

Subject: General Tech | August 14, 2014 - 03:30 PM |
Tagged: video, ssd, ROG Swift, ROG, podcast, ocz, nvidia, Kaveri, Intel, g-sync, FMS 2014, crossblade ranger, core m, Broadwell, asus, ARC 100, amd, A6-7400K, A10-7800, 14nm

PC Perspective Podcast #313 - 08/14/2014

Join us this week as we discuss new Kaveri APUs, ASUS ROG Swift G-Sync Monitor, Intel Core M Processors and more!

You can subscribe to us through iTunes and you can still access it directly through the RSS page HERE.

The URL for the podcast is: http://pcper.com/podcast - Share with your friends!

  • iTunes - Subscribe to the podcast directly through the iTunes Store
  • RSS - Subscribe through your regular RSS reader
  • MP3 - Direct download link to the MP3 file

Hosts: Ryan Shrout, Jeremy Hellstrom, Josh Walrath, and Allyn Malventano

Program length: 1:41:24
 

Subscribe to the PC Perspective YouTube Channel for more videos, reviews and podcasts!!

 

Meet Tonga, soon to be your new Radeon

Subject: General Tech | August 13, 2014 - 12:58 PM |
Tagged: tonga, radeon, FirePro W7100, amd

A little secret popped out with the release of AMD's FirePro W7100, a new family of GPU that goes by the name of Tonga, which is very likely to replace the aging Tahiti chip that has been used since the HD 7900 series.  The stats that The Tech Report saw show interesting changes from Tahiti including a reduction of the memory interface to 256-bit which is in line with NVIDIA's current offerings.  The number of stream processors might be reduced to 1792 from 2048 but that is based on the W7100 and it the GPUs may be released with the full 32 GCN compute units.  Many other features have seen increases, the number of Asynchronous Compute Engines goes from 2 to 8, the number of rasterized triangles per clock doubles to 4 and it adds support for the new TrueAudio DSP and CrossFire XDMA.

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"The bottom line is that Tonga joins the Hawaii (Radeon R9 290X) and Bonaire (R7 260X) chips as the only members of AMD' s GCN 1.1 series of graphics processors. Tonga looks to be a mid-sized GPU and is expected to supplant the venerable Tahiti chip used in everything from the original Radeon HD 7970 to the current Radeon R9 280."

Here is some more Tech News from around the web:

Tech Talk

Kaveri on Linux

Subject: Processors | August 11, 2014 - 03:40 PM |
Tagged: A10-7800, A6-7400K, linux, amd, ubuntu 14.04, Kaveri

Linux support for AMD's GPUs has not been progressing at the pace many users would like, though it is improving over time but that is not the same with their APUs.  Phoronix just tested the A10-7800 and A6-7400K on Ubuntu 14.04 with kernel 3.13 and the latest Catalyst 14.6 Beta.  This preview just covers the raw performance, you can expect to see more published in the near future that will cover new features such as the configurable TDP which exists on these chips.  The tests show that the new 7800 can keep pace with the previous 7850K and while the A6-7400K is certainly slower it will be able to handle a Linux machine with relatively light duties.  You can see the numbers here.

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"At the end of July AMD launched new Kaveri APU models: the A10-7800, A8-7600, and A6-7400K. AMD graciously sent over review samples on their A10-7800 and A6-7400K Kaveri APUs, which we've been benchmarking and have some of the initial Linux performance results to share today."

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Processors

Source: Phoronix

It's not just Broadwell today, we also have Seattle news

Subject: General Tech | August 11, 2014 - 01:47 PM |
Tagged: amd, seattle, hot chips

AMD has been showing off a reference Seattle-based server at Hot Chips and The Tech Report had an opportunity to see it.  Eight 64-bit Cortex-A57 chips are set up in pairs, each pair sharing 1MB of L2 cache while the 8MB of L3 cache is accessible by all eight chips as well as the coprocessors, memory controller, and I/O subsystems.  The system can address up to 128GB of DDR3 or DDR4, and you get support fot 8 SATA 6Gbps ports and 8 lanes of PCIe 3.0 to apportion between the slots.  There is a secure System Control Processor, a partitioned Cortex-A5 core with its own ROM, RAM, and I/O to control power, boot and configuration control with support for TrustZone as well as a Cryptographic Coprocessor which accelerates all encryption processes as you might well expect.  Read on for more information about AMD's unique new take on server technology.

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"For some time now, the features of AMD's Seattle server processor have been painted in broad brush strokes. This morning, at the Hot Chips symposium, AMD is filling in most of the missing details. We were treated to an advance briefing last week, where AMD provided previously confidential information about Seattle's cache network, memory controller, I/O features, and coprocessors."

Here is some more Tech News from around the web:

Tech Talk

AMD Branded SSDs good; Radeon R7 branded SSDs not so much

Subject: General Tech | August 8, 2014 - 12:39 PM |
Tagged: ssd, radeon r7, confusing, amd, 19nm

In a branding move that has no possibility of causing confusion, AMD has announce the name of their new SSD line and it seems that the next Radeon R7 240 you buy might be a GPU or then again it might not be.  Brand confusion aside, the drives will use 19nm Toshiba NAND fabbed at SanDisk and are predicted to perform similar to other drives with the same NAND, reads of 550MBps and 530MBps write.  However as we well know the key to performance lies in the controller and the number of channels so it will be interesting to see the first benchmarks.  As The Inquirer points out this could lead to the release of AMD branded machines, containing AMD made APU, RAM, SSD and discrete GPU.

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also Radeon

"The Radeon R7 range consisting of 120GB, 240GB and 480GB flavours and is designed to appeal to the gaming market, putting it in direct competition with Micron's Crucial range which expanded to include the MX100, which premiered earlier this year claiming 89 percent performance improvement over a standard hard drive."

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Source: The Inquirer