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Is ATI GPU folding faster than CPU folding? - Page 2

post #11 of 20
Quote:
Originally Posted by FrankenPC View Post
I haven't heard the definitive answer yet. If I get a 1900XTX ATI, will the GPU fold faster than a Conroe 6600?
Hi franken.

Here's the real skinny from Stanford and Pande:

Quote: "Folding@home has developed a new streaming processor core to utilize another new generation of hardware: GPU’s with programmable floating-point capability. By writing highly optimized, hand tuned code to run on ATI X1900 class GPU’s, the science of Folding@home will see another 20x to 30x speed increase over its previous software (Gromacs) for certain applications."
Here's the link: http://folding.stanford.edu/FAQ-ATI.html

So to your question, I'd say yes.

Again according to Stanford, the benchmark computer for their gpu folding was an X1900XTX. GPU's of other classes may work, but may also be slower. And as others have found out the X1800 series gpu's still have some bugs to work out, just like the original gpu versions for the X1900 series back in early October.

As for points. My Ati X1950XTX folds one core per 13 hours and gets 330 points per WU. You can do the math... Remember also that this folding rig does nothing but fold. Similar to your rigs, there is nothing loaded on the rig except Windows XP, the appropriate drivers and Folding at Home.

If your question is based on point totals, I don't know... The gpu client runs specialized WU's for the researchers.

I hope this helped, :-)
post #12 of 20
Quote:
Originally Posted by bdattilo View Post
Due to the GPU's massive amount of FPU calcs/second, I believe the GPU client is much faster than the CPU client, but still has a few bugs.
Is that so? Wow, and I thought upgrading my CPU would help my folding, I guess I should've picked up that X1600 for $99 when I had the chance...
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post #13 of 20
Quote:
Originally Posted by Chaogod87 View Post
Uhoh Franken is out to get them *gogogo*

I wonder if Franken will buy 1900XTX if it is actually a lot faster.


Ah when will nvidia GPU's start folding. I don't have money to buy 1900xtx just to fold.
Hi Chaogod,

To your question about nVidia. If they do get into the act, it will be with their next series of video cards. Nothing earlier will work because of the different way nVidai cards calculate floating point units from Ati.

I hope this helped, :-)
post #14 of 20
Quote:
Originally Posted by numlock2.0 View Post
Is that so? Wow, and I thought upgrading my CPU would help my folding, I guess I should've picked up that X1600 for $99 when I had the chance...
Hi numlock,

The X1600 series of cards will be supported at some point in time (next few months) without fail. However, I don't know about the speed. I think your XP 2400+ is fine for now.

BTW - Thanks for folding and for team 37726!

Take care, :-)
post #15 of 20
The X1600's are supported now I thought?
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post #16 of 20
Quote:
Originally Posted by 455buick View Post
Hi numlock,

The X1600 series of cards will be supported at some point in time (next few months) without fail. However, I don't know about the speed. I think your XP 2400+ is fine for now.

BTW - Thanks for folding and for team 37726!

Take care, :-)
Thanks for the info! It isn't possbile to fold both at the same time is it?

Quote:
Originally Posted by Xavier1421 View Post
The X1600's are supported now I thought?
That's what I thought...I read it somewhere...
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post #17 of 20
Quote:
Originally Posted by Xavier1421 View Post
The X1600's are supported now I thought?
Hi Xavier,

Yes they are, but in beta form only. And speaking from experience with the first set of beta's in early October, thats no fun at all...

I think and believe Stanford is putting a full court press on the gpu folding thing. They can see great advantages from the different WU configurations and the speed is there as well...

Hopefully, they'll get it like the cpu folding. Real stable for the most part and different WU point configurations. We'll soon see. They only have 6 more months to get it right. Then all of that "free" student talent pool goes away for the summer.

Take care, :-)
post #18 of 20
Thank you sir!
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post #19 of 20
Quote:
Originally Posted by numlock2.0 View Post
Thanks for the info! It isn't possbile to fold both at the same time is it?



That's what I thought...I read it somewhere...
Hi numlock,

To your question of folding with both the gpu and cpu. The answer is no, or at least not right now. The cpu still has to complete the WU roll up and check sum numbers/equations. The gpu only completes the initial calculating, I think. I'm not totally sure how the two are interlinked, but I know they are, based on posts from the Stanford forums.

Here's a link on your thoughts about the X1600: http://folding.stanford.edu/news.html

I hope all of this helped, :-)
post #20 of 20
well, you'll get about 650ppd with the GPU, and you might get more or less with the CPU. but stanford will get a lot more use out of the GPU.
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