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[The Inquirer] Nvidia's GTX680 gets thrashed by AMD's mid-range Radeon HD 7870 in GPU compute - Page 5

post #41 of 186
Quote:
Originally Posted by r34p3rex View Post

So when Fermi was designed with computing in mind, everyone complained how Nvidia didn't care about the gaming market. Now that Kepler is designed with gaming in mind, everyone suddenly decides the computing market is more important. rolleyes.gif
And by everyone I mean AMD fanboys.
Also, AFAIK, GeForce cards have their DP performance artificially capped. Why? Tesla and Quadro cards make much more profit for Nvidia

It's the same as how everyone all of a sudden needs that extra 0.5GB or 1GB in games since 6970 and 7970 came with more VRAM right out of the box. It didn't matter when 1.5GB was the max. The same happened with Tesselation.

Btw, Kepler is even more designed for computing purposes you just see the flaws of GK104 being designed for the mid range market (294mm², 195W unit). GK104's FP64 performance is probably capped at 1/12 FP32 just as all of the other mid range Fermi GPUs. GK100 was supposed to be a computing monster with the GeForce variants based on it being capped at 1/8 FP32. For reference the HD 7970 only takes a 1/4 performance hit.
post #42 of 186
Quote:
Originally Posted by TheBlademaster01 View Post


It's the same as how everyone all of a sudden needs that extra 0.5GB or 1GB in games since 6970 and 7970 came with more VRAM right out of the box. It didn't matter when 1.5GB was the max. The same happened with Tesselation.
Btw, Kepler is even more designed for computing purposes you just see the flaws of GK104 being designed for the mid range market (294mm², 195W unit). GK104's FP64 performance is probably capped at 1/12 FP32 just as all of the other mid range Fermi GPUs. GK100 was supposed to be a computing monster with the GeForce variants based on it being capped at 1/8 FP32. For reference the HD 7970 only takes a 1/4 performance hit.


One of the reasons why Tesla and Quadro cost more. I remember people stirring the pot about flashing the 2xx series firmware so that it would calculate FP more like it's Quadro variants.

 

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post #43 of 186
For most people gpu compute doesn't really matter, gaming performance does. And it's pretty obvious why nVi dia cards don't performance well in open click, it's a standard only used in AMD radeon API's for tasks like bitcoin mining. This delta in open click performance has always been present, it's why the radeon 5850 was a better bktcoin mining gpu than a gtx 580. It all comes down to ALU density, AMD favors higher ALU densities for their gpu's. NVidia doesn't care about open cl because they have the cuda parallel processing platform, which is more powerful and accepted much more than open cl.
This benchmark doesn't really prove any "shocking points"
The 680 has general gpu power equal to a 6990 in actual application.
AMD is lol
~ chmodlabs
post #44 of 186
GK110 will be the GPU compute part, just like GF100/GF110 were the compute parts and GF104/GF114 were very hindered at compute.
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post #45 of 186
Quote:
Originally Posted by r34p3rex View Post

So when Fermi was designed with computing in mind, everyone complained how Nvidia didn't care about the gaming market. Now that Kepler is designed with gaming in mind, everyone suddenly decides the computing market is more important. rolleyes.gif
And by everyone I mean AMD fanboys.
Also, AFAIK, GeForce cards have their DP performance artificially capped. Why? Tesla and Quadro cards make much more profit for Nvidia

If that's true, that's just another reason to go AMD. NVidia has been raping their customers for years. thumb.gif
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post #46 of 186
Quote:
Originally Posted by Emitz989 View Post

Quote:
WE'VE HEARD REPORTS about how the upcoming Nvidia GTX680, the very first Kepler 'GK104' GPU will beat all and sundry in everything, including AMD's top of the range Radeon HD 7970, despite the latter's new GCN architecture and 50 per cent wider memory buses and memory capacity.
Source: The Inquirer (http://s.tt/17LZI)
Quote:
Wow! The claim of beating the HD7970 goes right into the thin air, it seems. Nvidia's new GPU is beaten by the Radeon HD 7970 by an order of magnitude here in double precision floating-point, as well as nearly twice in ordinary single precision floating point. One is speechless here. Even the Radeon HD 7870 with its restricted double precision floating-point still outperforms the GTX680 by a noticeable margin in this department, as you can see here. Only the Radeon HD 7850 is substantially slower.
Source: The Inquirer (http://s.tt/17LZI)
635
Source:http://www.theinquirer.net/inquirer/review/2162193/nvidias-gtx680-thrashed-amds-mid-range-radeon-hd-7870-gpu-compute

Nice to see the fact that this is about the only thing that AMD is better than nvidia on. And yet so sensationalized, yet irrealavent to most.
post #47 of 186
Well I'm pissed. The reason I as gonna upgrade my card from my HD5870 was to have strong OpenCL and Cuda support.
I use Vray to render animation and stills in 3dsMax, Vray uses OpenCl. Other renderers and features I use need CUDA. As I cant afford a quadro I was gonna go GTX instead.
Obviously I'm stuck between markets which sucks but I'd be very annoyed if NV artificially capped OpenCL performance to encourage buying their higher end cards (or more likely to discourage OpenCL development)
Oh well.
Edited by Tremolo - 3/20/12 at 2:12pm
post #48 of 186
Quote:
Originally Posted by Tremolo View Post

Well I'm pissed. The reason I as gonna upgrade my card from my HD5870 was to have strong OpenCL and Cuda support.
I use Vray to render animation and stills in 3dsMax, Vray uses OpenCl. Other renderers and features I use need CUDA. As I cant afford a quadro I was gonna go GTX instead.
Obviously I'm stuck between markets which sucks but I'd be very annoyed if NV artificially capped OpenCL performance to encourage buying their higher end cards (or more likely to discourage OpenCL development)
Oh well.

Buy some cheap0 GTS 450, and go with a 7970 for OpenCL rendering, done!
    
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post #49 of 186
So how will this affect things like Folding or BOINC? Thats All i care about (besides gaming, Obviously!)
 
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post #50 of 186
It will suck for BOINC on any application using OpenCl (Moo! and Milkyway to name but two). If the CUDA performance is up there you still have PrimeGrid, DiRT, Collatz and, of course, F@H.

To be honest poor BOINCing performance would be a deal breaker for me. If the 7970 is priced similarly (and you can bet it will be soon), performs only slightly worse than the 680 but can still put up good numbers in BOINC then I will be going for that rather than a 680.

Not everyone uses their card purely for gaming. I don't game for more than a few hours a day, I would like a card that can be useful in the times when I am not gaming too.
Edited by GingerJohn - 3/20/12 at 2:49pm
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Overclock.net › Forums › Industry News › Rumors and Unconfirmed Articles › [The Inquirer] Nvidia's GTX680 gets thrashed by AMD's mid-range Radeon HD 7870 in GPU compute