Wondering which Athlon 64 CPU runs best with NVIDIA's GeForce 7800 GTX GPU? In this article, we've gathered processors ranging from the 1.8GHz "Venice" Athlon 64 3000+, all the way up to AMD's latest Athlon 64 FX-57 CPU. We've also included the GeForce 6800 GT for comparison. See which processor(s) deliver the most bang for your buck, as well as which clock speeds you may want to shoot for when overclocking inside!