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nVidia GPU not supported

post #1 of 20
Thread Starter 
Is it just me, or are other people disappointed that Stanford Folding is only
supporting ATI GPUs?

They claim that the nVidia GPUs just don't perform that well. I really
have a hard time believing this. You mean a 7900 GTX GPU can't
put out comparable calculation juice for folding?

My question is - how many of you are disappointed like me and how many
of you believe that it would be worth it for the Stanford Folding group
to at least support 7900 series and above for nVidia?

And if there are any programming experts out there - do you believe
the difference between ATI & nVidia GPUs high-end is so bad that as
the Stanford programmers claim: it simply is not worth the effort?
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post #2 of 20
wow, I guess there against nvidia?
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post #3 of 20
Thread Starter 
Well that was my first emotional reaction.

But my second more reasoned thought was: did the Stanford programmers try hard enough and look at all their options? I mean - c'mon, a 7900 GTX under-performs ATI that badly?

I want to say: give me a break.
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post #4 of 20
And the 7950GX2?
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post #5 of 20
There's something about the ATI design that makes them more folding-efficient.

That's about all I know on the subject.
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post #6 of 20
Thread Starter 
Quote:
Originally Posted by ouroboros1827 View Post
There's something about the ATI design that makes them more folding-efficient.

That's about all I know on the subject.
Yeah - that's the claim. But it seems lame to a modder and overclocker
like myself. Usually, with enough ingenuity - workarounds can be found
to exploit what resources there are.

You're telling me the nVidia GPU is that radically different from an ATI GPU? Very
hard to believe if you ask me. I'd like to see more details of why nVidia users
have been left out in the cold.
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post #7 of 20
Can you imagine what the ppd would be if you could fold on a 8800GTX /drool
post #8 of 20
You have zero information about this, other then the fact that they dont support nVidia GPUs, and the reasons they have given. There for, the only thing you are basing your arguments on is the fact that nVidia GPUs perform very close to ATI GPUs in 3d rendering applications. This tells us nothing at all about how they would handle the types of calculations required by the F@H program.

You can be mad all you want, but baseless arguments about what you think "should" work are pointless.
post #9 of 20
I bet they will put it on the 8800.....

Dont the new ATI cards have more shaders than the 7900's? I think that has something to do with it...
post #10 of 20
Quote:
Originally Posted by jamenta View Post
Is it just me, or are other people disappointed that Stanford Folding is only
supporting ATI GPUs?

They claim that the nVidia GPUs just don't perform that well. I really
have a hard time believing this. You mean a 7900 GTX GPU can't
put out comparable calculation juice for folding?

My question is - how many of you are disappointed like me and how many
of you believe that it would be worth it for the Stanford Folding group
to at least support 7900 series and above for nVidia?

And if there are any programming experts out there - do you believe
the difference between ATI & nVidia GPUs high-end is so bad that as
the Stanford programmers claim: it simply is not worth the effort?
Hi jamenta,

I know it may seem unfair or unlikely, but here's the deal straight from the Stanford site:

<"What about video cards with other (non-ATI) chipsets?
The R580 (in the X1900XT, etc.) performs particularly well for molecular dynamics, due to its 48 pixel shaders. Currently, other cards (such as those from nVidia and other ATI cards) do not perform well enough for our calculations as they have fewer pixel shaders. Also, nVidia cards in general have some technical limitations beyond the number of pixel shaders which makes them perform poorly in our calculations.">

Here's a link if you'd like to read the whole article:
http://www.stanford.edu/group/pandeg...g/FAQ-ATI.html

It really gets down to the gpu characteristics, and not the manufacturer. If nVidia had taken a different path in their development of their gpu heirachy then perhaps their gpu's would have worked for folding as well. It's not an ATI vs. nVidia thing...

Also, be advised that the gpu folding is still in Beta. I've been one of those testing the WU's, and thus far everything seems to be going along well. The Stanford group has really put a full court press on this issue of gpu folding, because they see this as the next frontier.

I hope this helped, :-)
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