Posts by Nicholas Chase

1) Message boards : Questions and problems : What's the best GPU for BOINC Projects? (Message 33866)
Posted 21 Jul 2010 by Nicholas Chase
Post:
Fair enough. Sorry if that sounded like a demand. It was more of a wish, because I have looked high and low on the interwebs and come up dry when it comes to a decent comparison of ATI and nVidia GPUs' GPGPU performance. I was just wondering if anyone had had more luck than I.
2) Message boards : Questions and problems : What's the best GPU for BOINC Projects? (Message 33863)
Posted 20 Jul 2010 by Nicholas Chase
Post:
Thanks everyone. Let me be more specific:
I'm aiming for around $200 to spend here, sometime before fall but maybe I'll wait depending on finances, in which case I might wait for ATI's Southern Islands series to see what improvements they make.
I want to do something to help better understand climate change if possible, though I know climateprediction.net doesn't offer GPGPU (or does it?)
I was thinking I'd find the best GPU for double precision performance, since that seems to be where GPUs render the smallest performance.
But then I saw a link stating that 58xx series ATI GPUs don't do OpenCL as well as even GT200-based nvidia GPUs, which made me think they might not be as good for gpgpu in general.

What I really, really, really want is a shootout of modern GPUs entirely focused on OpenCL and GPGPU in general. Pluses, minuses, all laid out in layman's terms if possible.
Oh, and my system:
Ubuntu 10.04
AMD Athlon II x4 635 @ 3.04 Ghz
2x2 GB DDR3-1333
Biostar A785G3 Motherbouard
3) Message boards : Questions and problems : What's the best GPU for BOINC Projects? (Message 33766)
Posted 14 Jul 2010 by Nicholas Chase
Post:
I'm having a really hard time figuring out which video cards are most qualified for this type of computing. Does Fermi beat out ATI's 5000 series? On paper, it appears ATI can perform more GFLOPS, but what about in practice? Any advice or information or links to advice or information would be much appreciated.



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