well... im looking into building a new pc. Im stuck on what kind of processor to get. Im going to buy the xfx geforce 7800 gtx. Im looking at the pentum dual core 3.2 ghz. I dont really want to do too much overclocking, maybe just a little. But I was also looking at an amd 64 x2 dual core 2.2 ghz. Wich one will perform better?