The ones in the OP?
It has only 2560x1600 4x/8x review which favors nvidia, and most gamers play at 1920x1080/1200 4x/8x.
nvidia has always been dominating in high resolution framerates. I personally game at 2560x1600 and I would love the extra mem and bandwidth of 480...but again, i'd be better off CFing 5870.