Author:
Manufacturer: AMD

A Powerful Architecture

AMD likes to toot its own horn. Just a take a look at the not-so-subtle marketing buildup to the Radeon R9 295X2 dual-Hawaii graphics card, released today. I had photos of me shipped to…me…overnight. My hotel room at GDC was also given a package which included a pair of small Pringles cans (chips) and a bottle of volcanic water. You may have also seen some photos posted of a mysterious briefcase with its side stickered by with the silhouette of a Radeon add-in board.

This tooting is not without some validity though. The Radeon R9 295X2 is easily the fastest graphics card we have ever tested and that says a lot based on the last 24 months of hardware releases. It’s big, it comes with an integrated water cooler, and it requires some pretty damn specific power supply specifications. But AMD did not compromise on the R9 295X2 and, for that, I am sure that many enthusiasts will be elated. Get your wallets ready, though, this puppy will run you $1499.

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Both AMD and NVIDIA have a history of producing high quality dual-GPU graphics cards late in the product life cycle. The most recent entry from AMD was the Radeon HD 7990, a pair of Tahiti GPUs on a single PCB with a triple fan cooler. While a solid performing card, the product was released in a time when AMD CrossFire technology was well behind the curve and, as a result, real-world performance suffered considerably. By the time the drivers and ecosystem were fixed, the HD 7990 was more or less on the way out. It was also notorious for some intermittent, but severe, overheating issues, documented by Tom’s Hardware in one of the most harshly titled articles I’ve ever read. (Hey, Game of Thrones started again this week!)

The Hawaii GPU, first revealed back in September and selling today under the guise of the R9 290X and R9 290 products, is even more power hungry than Tahiti. Many in the industry doubted that AMD would ever release a dual-GPU product based on Hawaii as the power and thermal requirements would be just too high. AMD has worked around many of these issues with a custom water cooler and placing specific power supply requirements on buyers. Still, all without compromising on performance. This is the real McCoy.

Continue reading our review of the AMD Radeon R9 295X2 8GB Dual Hawaii Graphics Card!!

Podcast #294 - Frame Rating Mantle in BF4, DirectX 12, Sub-$700 4K Monitors and more!

Subject: General Tech | April 3, 2014 - 10:30 AM |
Tagged: video, Samsung, podcast, Mantle, Glacer 240L, GDC 2014, frame rating, dx12, cooler master, BUILD 2014, BF4, amd, adata, 4k

PC Perspective Podcast #294 - 04/03/2014

Join us this week as we discuss Frame Rating Mantle in BF4, DirectX 12, Sub-$700 4K Monitors 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

 
This podcast is brought to you by Coolermaster, and the CM Storm Pulse-R Gaming Headset!
 
Program length: 1:12:29
 
  1. Week in Review:
  2. 0:43:40 This podcast is brought to you by Coolermaster, and the CM Storm Pulse-R Gaming Headset
  3. News items of interest:
  4. Hardware/Software Picks of the Week:
    1. Allyn: Like MAME? Try MESS, and further - UME (systems list)
  5. Closing/outro

Be sure to subscribe to the PC Perspective YouTube channel!!

 

Author:
Manufacturer: AMD

BF4 Integrates FCAT Overlay Support

Back in September AMD publicly announced Mantle, a new lower level API meant to offer more performance for gamers and more control for developers fed up with the restrictions of DirectX. Without diving too much into the politics of the release, the fact that Battlefield 4 developer DICE was integrating Mantle into the Frostbite engine for Battlefield was a huge proof point for the technology. Even though the release was a bit later than AMD had promised us, coming at the end of January 2014, one of the biggest PC games on the market today had integrated a proprietary AMD API.

When I did my first performance preview of BF4 with Mantle on February 1st, the results were mixed but we had other issues to deal with. First and foremost, our primary graphics testing methodology, called Frame Rating, wasn't able to be integrated due to the change of API. Instead we were forced to use an in-game frame rate counter built by DICE which worked fine, but didn't give us the fine grain data we really wanted to put the platform to the test. It worked, but we wanted more. Today we are happy to announce we have full support for our Frame Rating and FCAT testing with BF4 running under Mantle.

A History of Frame Rating

In late 2012 and throughout 2013, testing graphics cards became a much more complicated beast. Terms like frame pacing, stutter, jitter and runts were not in the vocabulary of most enthusiasts but became an important part of the story just about one year ago. Though complicated to fully explain, the basics are pretty simple.

Rather than using software on the machine being tested to measure performance, our Frame Rating system uses a combination of local software and external capture hardware. On the local system with the hardware being evaluated we run a small piece of software called an overlay that draws small colored bars on the left hand side of the game screen that change successively with each frame rendered by the game. Using a secondary system, we capture the output from the graphics card directly, intercepting it from the display output, in real-time in an uncompressed form. With that video file captured, we then analyze it frame by frame, measuring the length of each of those colored bars, how long they are on the screen, how consistently they are displayed. This allows us to find the average frame rate but also to find how smoothly the frames are presented, if there are dropped frames and if there are jitter or stutter issues. 

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Continue reading our first look at Frame Rating / FCAT Testing with Mantle in Battlefield 4!!

Podcast #285 - Frame Rating AMD Dual Graphics with Kaveri, Linux GPU Performance, and Dogecoin Mining!

Subject: General Tech | January 30, 2014 - 11:32 AM |
Tagged: podcast, frame rating, video, amd, Kaveri, A10 7850K, dual graphics, linux, opengl, Lenovo, IBM

PC Perspective Podcast #285 - 01/30/2014

Join us this week as we discuss Frame Rating AMD Dual Graphics with Kaveri, Linux GPU Performance, and Dogecoin Mining!

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: 1:02:01
  1. Week in Review:
  2. News items of interest:
    1. 0:37:45 Quick Linux mention
      1. And Motorola Mobility
  3. Hardware/Software Picks of the Week:
  4. Closing/outro

Be sure to subscribe to the PC Perspective YouTube channel!!

 

Podcast #280 - NVIDIA GRID Beta, R9 290X Custom Coolers, 2TB SSDs and more!

Subject: General Tech | December 11, 2013 - 10:35 PM |
Tagged: z87, xfire, video, shield, R9 290X, podcast, pcper, nvidia, litecoin, grid, frame rating, eyefinity, crossfire, amd

PC Perspective Podcast #280 - 12/12/2013

Join us this week as we discuss the NVIDIA GRID Beta, R9 290X Custom Coolers, 2TB SSDs 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, Josh Walrath, Allyn Malventano and Scott Michaud

 
Program length: 1:09:46
  1. Week in Review:
  2. News items of interest:
  3. Hardware/Software Picks of the Week:
    1. Allyn: Windows 8.1 tweaks at WinAero.com
  4. Closing/outro

 

AMD Expects Beta Eyefinity Fix in January

Subject: General Tech, Graphics Cards | December 11, 2013 - 02:58 PM |
Tagged: frame pacing, frame rating, amd, southern islands, 4k, eyefinity, crossfire, microstutter

The frame pacing issue has been covered at our website for almost a year now. It stems from the original "microstutter" problem which dates back over a year before we could quantify it. We like to use the term "Frame Rating" to denote the testing methodology we now use for our GPU tests.

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AMD fared worse at these tests than NVIDIA (although even they had some problems in certain configurations). They have dedicated a lot of man-hours to the problem resulting in a driver updates for certain scenarios. Crossfire while utilizing Eyefinity or 4K MST was one area they did not focus on. The issue has been addressed in Hawaii and AMD asserted that previous cards will get a software fix soon.

The good news is that we have just received word from AMD that they plan on releasing a beta driver for Southern Islands and earlier GPUs (AMD believes it should work for anything that's not "legacy"). As usual, until it ships anything could change, but it looks good for now.

The beta "frame pacing" driver addressing Crossfire with 4K and Eyefinity, for supported HD-series and Southern Islands-based Rx cards, is expected to be public sometime in January.

Source: AMD
Author:
Manufacturer: AMD

A bit of a surprise

Okay, let's cut to the chase here: it's late, we are rushing to get our articles out, and I think you all would rather see our testing results NOW rather than LATER.  The first thing you should do is read my review of the AMD Radeon R9 290X 4GB Hawaii graphics card which goes over the new architecture, new feature set, and performance in single card configurations. 

Then, you should continue reading below to find out how the new XDMA, bridge-less CrossFire implementation actually works in both single panel and 4K (tiled) configurations.

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A New CrossFire For a New Generation

CrossFire has caused a lot of problems for AMD in recent months (and a lot of problems for me as well).  But, AMD continues to make strides in correcting the frame pacing issues associated with CrossFire configurations and the new R9 290X moves the bar forward.

Without the CrossFire bridge connector on the 290X, all of the CrossFire communication and data transfer occurs over the PCI Express bus that connects the cards to the entire system.  AMD claims that this new XDMA interface was designed for Eyefinity and UltraHD resolutions (which were the subject of our most recent article on the subject).  By accessing the memory of the GPU through PCIe AMD claims that it can alleviate the bandwidth and sync issues that were causing problems with Eyefinity and tiled 4K displays.

Even better, this updated version of CrossFire is said to compatible with the frame pacing updates to the Catalyst driver to improve multi-GPU performance experiences for end users.

IMG_1800.JPG

When an extra R9 290X accidentally fell into my lap, I decided to take it for a spin.  And if you have followed my graphics testing methodology in the past year then you'll understand the important of these tests.

Continue reading our article Frame Rating: AMD Radeon R9 290X CrossFire and 4K Preview Testing!!

Author:
Manufacturer: AMD

A slightly new architecture

Note: We also tested the new AMD Radeon R9 290X in CrossFire and at 4K resolutions; check out that full Frame Rating story right here!!

Last month AMD brought media, analysts, and customers out to Hawaii to talk about a new graphics chip coming out this year.  As you might have guessed based on the location: the code name for this GPU was in fact, Hawaii. It was targeted at the high end of the discrete graphics market to take on the likes of the GTX 780 and GTX TITAN from NVIDIA. 

Earlier this month we reviewed the AMD Radeon R9 280X, R9 270X, and the R7 260X. None of these were based on that new GPU.  Instead, these cards were all rebrands and repositionings of existing hardware in the market (albeit at reduced prices).  Those lower prices made the R9 280X one of our favorite GPUs of the moment as it offers performance per price points currently unmatched by NVIDIA.

But today is a little different, today we are talking about a much more expensive product that has to live up to some pretty lofty goals and ambitions set forward by the AMD PR and marketing machine.  At $549 MSRP, the new AMD Radeon R9 290X will become the flagship of the Radeon brand.  The question is: to where does that ship sail?

 

The AMD Hawaii Architecture

To be quite upfront about it, the Hawaii design is very similar to that of the Tahiti GPU from the Radeon HD 7970 and R9 280X cards.  Based on the same GCN (Graphics Core Next) architecture AMD assured us would be its long term vision, Hawaii ups the ante in a few key areas while maintaining the same core.

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Hawaii is built around Shader Engines, of which the R9 290X has four.  Each of these includes 11 CU (compute units) which hold 4 SIMD arrays each.  Doing the quick math brings us to a total stream processor count of 2,816 on the R9 290X. 

Continue reading our review of the AMD Radeon R9 290X 4GB Graphics Card!!

TechReport: AMD Plans Frame Pacing Driver for CrossFire, Eyefinity, and 4K... This Autumn

Subject: General Tech, Graphics Cards | September 26, 2013 - 12:35 AM |
Tagged: frame rating, frame pacing, amd

Scott Wasson of The Tech Report just received an interview with Raja Koduri, head of Graphics Hardware and Software Development at AMD, a few hours ago. Part of the interview discussed frame the frame pacing issues we, as well as The Tech Report, published over the last year. In short, the news seems good for owners of Radeon graphics cards, future and even current.

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The "Hawaii" powered Radeon R9 290 and R9 290X graphics cards are expected to handle CrossFire pacing acceptably at launch. Clearly, if there is ever a time to fix the problem, it would be in new hardware. Still, this is good news for interested customers; if all goes to plan, you are likely going to have a good experience out of the box.

Current owners of GCN-based video cards, along with potential buyers of the R9 280X and lower upcoming cards, will apparently need to wait for AMD to release a driver to fix these issues. However, this driver is not far off: Koduri, unclear whether on or off the record, intends for an autumn release. This driver is expected to cover frame pacing issues for CrossFire, Eyefinity, and 4K.

Koduri does believe the CrossFire issues were unfortunate and expresses a desire to fix the issue for his customers.

Keep checking PC Perspective for more information as it comes out!

Editor's Note: I just spoke with Raja Koduri as well and he basically reiterated everything that Scott noted in his story on The Tech Report as well.  The upcoming 290X will have frame pacing at Eyefinity and 4K resolution at launch while the cards below that in the R9 series, and users of Radeon HD 7000 cards (and likely beyond) will need some more time before the driver is ready.  I'll be able to talk quite a bit more about the changes to BOTH architectures very shortly so stay tuned for that.

Source: Tech Report

Podcast #269 - Frame Rating on Eyefinity, News from IDF, and rumors about new AMD GPUs

Subject: General Tech | September 19, 2013 - 11:26 AM |
Tagged: video, surround, podcast, nvidia, Intel, idf, haswell, frame rating, eyefinity, baytrail, amd, 4250U

PC Perspective Podcast #269 - 09/19/2013

Join us this week as we discuss Frame Rating on Eyefinity, News from IDF, and rumors about new AMD GPUs

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: Jeremy Hellstrom, Josh Walrath, Allyn Malventano, and Morry Teitelman

 
Program length: 1:35:35
  1. Week in Review:
  2. News items of interest:
  3. Hardware/Software Picks of the Week:
    1. Jeremy: Um, sure why not - ADATA DashDrive Durable
    2. Allyn: Connected Data Transporter 2.0 (yes it exists)
  4. 1-888-38-PCPER or podcast@pcper.com
  5. Closing/outro