Subject: General Tech | November 26, 2013 - 12:46 PM | Jeremy Hellstrom
Tagged: amd, Mantle, apu13
The Tech Report learned quite a bit about Mantle at APU 13, focusing much more deeply on what Mantle is and how it will work. To think of it as a replacement for DirectX is a good start as it is an API but it also changes how your system interacts with your GPU. The briefing delves into to the technical side, describing the context-based execution model which Mantle uses to give you proper access to assign tasks to multiple processors or other resources as the memory interface is also completely revamped. There are four pages describing Mantle for your reading pleasure here and with the strong early adoption it would be worth your time to learn more about it.
"At its APU13 developer conference in San Jose, California, AMD invited journalists and developers to listen to hours worth of keynotes and sessions by Mantle's creators and early adopters. We sat through all of it—and talked to some of those experts one on one—in order to get a sense of what Mantle does, how it will impact performance, and what its future may hold."
Here is some more Tech News from around the web:
- Revealed: How Microsoft DNS went titsup globally on Xbox One launch day @ The Register
- Understanding M.2 NGFF SSD Standardization (Or The Lack Of) @ SSD Review
- The TR Podcast 146: Cyril gets cranked on cold medicine and talks AMD
- Top 10 Linux-Based Gifts for 2013 Under $400 @ Linux.com
- Have 100GB Free? Host Your Own Copy of Wikipedia, With Images @ Slashdot
- Nokia Lumia 2520 price, release date and where to buy @ The Inquirer
- Xbox One @ The Inquirer
- Avermedia Game Capture HD 2 @ Rbmods
- Meet the BlackBerry wizardry that created its 'better Android than Android' @ The Register
- SiSoftware Sandra Lite 2014 Release @ NGOHQ
Subject: Graphics Cards | November 13, 2013 - 09:54 PM | Ryan Shrout
Tagged: video, Mantle, apu13, amd
While attending the AMD APU13 event, an annual developer conference the company uses to promote heterogeneous computing, I got to sit in during a deep dive on the AMD Mantle, a new hardware level API first announced in September. Rather than attempt to re-explain what was explained quite well, I decided to record the session on video and then intermix the slides presented in a produced video for our readers.
The result is likely the best (and seemingly first) explanation of how Mantle actually works and what it does differently than existing APIs like DirectX and OpenGL.
Also, because we had some requests, I am embedding the live blog we ran during Johan Andersson's keynote from APU13. Enjoy!
Subject: Graphics Cards | October 18, 2013 - 07:55 PM | Ryan Shrout
Tagged: video, tim sweeney, nvidia, Mantle, john carmack, johan andersson, g-sync, amd
If you weren't on our live stream from the NVIDIA "The Way It's Meant to be Played" tech day this afternoon, you missed a hell of an event. After the announcement of NVIDIA G-Sync variable refresh rate monitor technology, NVIDIA's Tony Tomasi brough one of the most intriguing panels of developers on stage to talk.
John Carmack, Tim Sweeney and Johan Andersson talk for over an hour, taking questions from the audience and even getting into debates amongst themselves in some instances. Topics included NVIDIA G-Sync of course, AMD's Mantle low-level API, the hurdles facing PC gaming and what direction each luminary is currently on for future development.
If you are a PC enthusiast or gamer you are definitely going to want to listen and watch the video below!
Subject: Graphics Cards | October 14, 2013 - 08:52 PM | Ryan Shrout
Tagged: xbox one, microsot, Mantle, dx11, amd
Microsoft posted a new blog on its Windows site that discusses some of the new features of the latest DirectX on Windows 8.1 and the upcoming Xbox One. Of particular interest was a line that confirms what I have said all along about the much-hyped AMD Mantle low-level API: it is not compatible with Xbox One.
We are very excited that with the launch of Xbox One, we can now bring the latest generation of Direct3D 11 to console. The Xbox One graphics API is “Direct3D 11.x” and the Xbox One hardware provides a superset of Direct3D 11.2 functionality. Other graphics APIs such as OpenGL and AMD’s Mantle are not available on Xbox One.
What does this mean for AMD? Nothing really changes except some of the common online discussion about how easy it would now be for developers to convert games built for the console to the AMD-specific Mantle API. AMD claims that Mantle offers a significant performance advantage over DirectX and OpenGL by giving developers that choose to implement support for it closer access to the hardware without much of the software overhead found in other APIs.
This is what Mantle does. It bypasses DirectX (and possibly the hardware abstraction layer) and developers can program very close to the metal with very little overhead from software. This lowers memory and CPU usage, it decreases latency, and because there are fewer “moving parts” AMD claims that they can do 9x the draw calls with Mantle as compared to DirectX. This is a significant boost in overall efficiency. Before everyone gets too excited, we will not see a 9x improvement in overall performance with every application. A single HD 7790 running in Mantle is not going to power 3 x 1080P monitors in Eyefinity faster than a HD 7970 or GTX 780 (in Surround) running in DirectX. Mantle shifts the bottleneck elsewhere.
I still believe that AMD Mantle could bring interesting benefits to the AMD Radeon graphics cards on the PC but I think this official statement from Microsoft will dampen some of the over excitement.
Also worth noting is this comment about the DX11 implementation on the Xbox One:
With Xbox One we have also made significant enhancements to the implementation of Direct3D 11, especially in the area of runtime overhead. The result is a very streamlined, “close to metal” level of runtime performance. In conjunction with the third generation PIX performance tool for Xbox One, developers can use Direct3D 11 to unlock the full performance potential of the console.
So while Windows and the upcoming Xbox One will share an API there will still be performance advantages for games on the console thanks to the nature of a static hardware configuration.
Subject: General Tech | October 11, 2013 - 03:19 PM | Jeremy Hellstrom
Tagged: amd, Mantle, gaming, valve
The Tech Report has been thinking on the upcoming release of SteamOS and AMD's Mantle and they see some problems that could come about because of them. Fragmentation has always been a problem for PCs, be it that the hardware between systems never matches or the wide variety of APIs and game engines on the software side. It can de daunting to begin developing a game and determining if optimizing for AMD, NVIDIA or Intel is worth considering as well as the choice between Direct3D or OpenGL or trying to make them both work. Mantle is now a choice, BF4 will actually be releasing a version that is natively Mantle shortly after they launch the first version of the game. Valve has also hinted that several AAA titles will be released on SteamOS, not necessarily Windows or Linux. What effect could this have on PC gaming as these new choices arrive at the same time the next generation consoles are released? Read on and see.
"Valve's SteamOS and AMD's Mantle API have the potential to do great things for PC gaming. However, they also threaten to fragment the platform at a critical time, when next-gen consoles are about to reduce the PC's performance and image quality lead by a long shot."
Here is some more Tech News from around the web:
- Windows 8.1 won't save Windows 8 @ The Inquirer
- The legacy IE survivor's guide: Firefox, Chrome... more IE? @ The Register
- Microsoft wants to 'move beyond' the Cookie Monster @ The Register
- Will BlackBerry be cherrypicked, or bought by its daddies? @ The Register
- Technology Before Its Time: 9 Products That Were Too Early to Market @ TechSpot
- D-Link DIR-868L Wireless AC1750 Dual-Band Cloud Router Review @ Legit Reviews
- Happy 10th b-day, Patch Tuesday: TWO critical IE 0-day bugs, did you say? @ The Register
- ASUS AOOC 2013 Finals Moscow Report @ techPowerUp
- Beginners Guides: Repairing a Cracked / Broken Notebook LCD Screen @ PCSTATS
- ASUS RT-AC66U AC1750 Wireless 802.11AC Router Review @MissingRemote
AMD is up to some interesting things. Today at AMD’s tech day, we discovered a veritable cornucopia of information. Some of it was pretty interesting (audio), some was discussed ad-naseum (audio, audio, and more audio), and one thing in particular was quite shocking. Mantle was the final, big subject that AMD was willing to discuss. Many assumed that the R9 290X would be the primary focus of this talk, but in fact it very much was an aside that was not discussed at any length. AMD basically said, “Yes, the card exists, and it has some new features that we are not going to really go over at this time.” Mantle, as a technology, is at the same time a logical step as well as an unforeseen one. So what all does Mantle mean for users?
Looking back through the mists of time, when dinosaurs roamed the earth, the individual 3D chip makers all implemented low level APIs that allowed programmers to get closer to the silicon than what other APIs such as Direct3D and OpenGL would allow. This was a very efficient way of doing things in terms of graphics performance. It was an inefficient way to do things for a developer writing code for multiple APIs. Microsoft and the Kronos Group had solutions with Direct3D and OpenGL that allowed these programmers to develop for these high level APIs very simply (comparatively so). The developers could write code that would run D3D/OpenGL, and the graphics chip manufacturers would write drivers that would interface with Direct3D/OpenGL, which then go through a hardware abstraction layer to communicate with the hardware. The onus was then on the graphics people to create solid, high performance drivers that would work well with DirectX or OpenGL, so the game developer would not have to code directly for a multitude of current and older graphics cards.
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