Now I raise the question once again
400 CPUs ?
how would this compare to 3 or 4 of these 240 Processor Cores video card all SLI together using CUDA?
GIGABYTE GV-N275SO-18I GeForce GTX 275 1792MB 448-bit GDDR3 PCI Express 2.0 x16
Chipset Manufacturer: NVIDIA
Core Clock: 715MHz
Shader Clock: 1550MHz
Stream Processors: 240 Processor Cores
Memory Clock: 2520MHz
Saint Louis, MO
I cannot find the reference to it but one of the church of the wifi guys did just that on some of the earlier generation hardware(several years ago). If I recall correctly he hard four cards in his machine and was able to generate 17,000 hashes a second. Note I said generate (which is what takes the time) the hashes and not check hashes(a 700MhzPIII can check/compare this many hashes a second). As a rough guess one could probably bump that to 170,000+ hashes a second on the newer hardware.