as far as games go cpus really don't have that great of an effect on fps. the difference might be by just a few frames. mostly the difference is something that the computer can't tell you. its something you will have to see for yourself. now you can get an intel cpu clocked 4ghz and get a phenom clocked at 3ghz. the intel will have a higher fps but does it mean its better? if you actually look at the game instead of the fps you will notice that the amd system runs a lot smoother even tho the fps is lower. benchmarks and results can't be the only proof of why something is better. in this case the benchmark favors one but you can look at it and clearly tell the other is better.