Your playing on 1680x1050 and 8800gtx is STILL enough for it in most games, upgrades where you will see some difference would be 4870/260/280, and that card has lots of vram with the right bus, turn on aa/af and you wont notice any dips in fps. Stick with this card, until u really notice that it cant play games any more, & that will be later next year, not before that.