[RC5] stream vs cuda rates

Lars Sahlmann lanisa at gmx.de
Wed Nov 11 15:48:51 EST 2009


Hi Bert,

it is true. ATI streamcabable cards are real monsters doing rc5 cracking.
Nvidia cards suffered from a compiler error reducing their speed by 50%. This has been fixed with cuda >=2.2.

I couldn't find an up-to-date benchmark list, but can provide you with some data.

ATI 5870  ~1250 Mkeys/s @850MHz 1600 streamcores ~ 25K WUs/day 
ATI 4850  ~514 Mkeys/s @665MHz 800 shaderuntis ~ 10K WUs/day
NV  GT285 ~310 Mkeys/s @1436MHz (shaders) 240 cores ~ 6K WUs/day

you won't gain any speed increase if ram is faster. 

you can say roughly 100 Mkeys/s result in 2000 statunits a day.



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