Is it really worth it though.. Fair enough you could drop £300 on a GTX280 which won't break a sweat for god knows how long just to play a couple of power hungry games.. Of course the better the card is the longer it will last but at this resolution I don't see the point in spending that much personally. The perceived differences in quality will be minimal
imo.
But if you really do want to play them maxxed out then I suppose a GTX260 of HD4870 is the way to go.
Also with the resolution being this low surely we stray into the CPU limiting arena.