I am using GeFore 7900GS and Core2Duo 6550. Last week I downloaded the demo version of Far Cry. In that version only the lowest graphic quality is available, but it already stuns my eyes. So I decided to buy this game. In the full version, I can set the graphic quality to "Very High", and it is really amazing. I also bought DOOM 3 some years ago, but I can play it only with medium quality. I would recommand this
game if your hardware if you like first-person-shooting game.