You'll have to ask another gateway user about any cpu upgrades. I don't recommend it. If you're unhappy about your current performance, get a new pc or have someone build you one. My local frys had quad systems with 8 gigs of ddr3 for only $599. You can't build one that cheap. Dell, hp, gateway are difficult to upgrade the cpu; best bet is to change to a newer gateway board off ebay, as your windows installation may only work on a motherboard with a gateway bios.