Really any dual core or even a single core will blow away an Xbox360 I had dual Nvidia Geforce 7600GT vid cards with 256 megs of ram in each . I swapped them out for a single Geforce 9800 GT 256. My gaming is soooo smooth & I only have 2 gigs of Ram running windows xp 500 gig Sata Raid a good sound card is key on FPShooters to hear them before you see them is a good advantage. We get most of our stuuf from NEW EGG tech . very cheap & quality products . + its is a fun hobby to get into . & soon you will be building them for your friends when they see how badass your rig is Good luck