8800GT/9800GT holds up much better than you might expect. Mine can still play COD5 and HL2 E:2 at 1920x1080 maxed out with good FPS. Even taking the info from that xbit link you should be able to bump the res from 1680 up to 1920, reduce settings from ultra/4x AA down to medium or medium high and still get at least 50fps avg