For me, AMD tends to do better with multithreaded/parallel applications, but that tradeoff is at the expense of single core speeds. So mostly it depends on what

For me, AMD tends to do better with multithreaded/parallel applications, but that tradeoff is at the expense of single core speeds. So mostly it depends on what you are using it for. I built a 64 core opteron server for doing physics calculations and it was probably my favorite build ever, so I can't wait to try the new AMD server lineup, this time I'll only need two CPUs to get 64 cores!