I am thinking of purchasing 8600 GTS as a platform for learning CUDA. Are there any differences beyond obvious (fewer multiprocessors, less memory, slower performance) between 8600 and 8800 series as far as CUDA and GPU programming go?
I was hoping to clarify in what sense you mean ‘not supported’ Do you mean that it will definitely not work for now on the 8600?, or it just not supported in the sense that on distributions other than RHEL, CUDA is not supported, but it still tends to work just fine.
I just got my 8600 a few hours ago, installed the card and the 158.19 Windows XP driver and apparently CUDA is working. My code actually runs in non-emulation mode. Of all of the SDK examples I tried the only one that didn’t work was fluidsD3D.
Thanks, wumpus - I was actually more interested if anyone has experience with OC cards as bit errors are much more critical in CUDA than when playing a game (why the Quadro cards are clocked slightly slower?). The company is ISO9001 so there is a good chance it is well tested. I don’t think it is pushing the chip as all the G80s no doubt come from the same die and those with a local fault have some fuses blown to isoloate the area and turn them into GTSs (+ different bonding). This raises the question of diagnostic QA software that was discussed in another thread… don’t think anything has appeared yet.
ed: Another option is the 8950 (it is spec’ed at 575/1800MHz, I believe) - anyone know if the 8950 looks like 1x24 multiprocs in CUDA or 2x12 (1 or 2 devices)?
Yes and perhaps Quadro cards should use ECC memory, for serious CUDA. All our critical machines do and that would justify the price. Unfortunately one would take a significant performance hit due to slower memory speed (and only DDR2?).
I found it interesting that the 8600s appearing here are 675/2000MHz (4 multiprocessors & 128 bit bus) giving a device memory latency of 260 GPU clocks (8800GTX is 327) for a memory bound app with 100% utilisation and perfect coalescing.
Will it be supported at the same update with 8600s? “sometime in may” as was posted by Cyril.
Just something I want to clarify, very roughly speaking, what mostly determine the processing speed of the cards? Of course the memory clock, amount, system configuration, bla bla will affect performance, but is it fair to say “cards with 128 stream processors should be almost 4x faster than cards with 32 stream processors”