To be honest, I have owned quite a number of cards from both brands ( as well as Matrox and Orchid Righteous 3d) most recently a 7800GT and then a 1900XT, apart from the actual speed of the upgrade, which was the primary reason for the change, the actual picture quality isnt that noticable on FEAR, GT Legends or SSII
Just my 2p's worth
Just my 2p's worth