Unreal Tournament 3
Unreal Tournament III was the first game that really put the Radeon HD 4870 in difficulty. As you can see, it slipped back in the rankings to behind the GeForce 9800 GTX at 1680*1050. Even though it moved back up in the ranking when we increased the resolution, it was systematically behind the GeForce GTX 260 with this title (by an average of 13%).