Quake 4 performance
Quake 4 is pretty much playable right up to 2560x1600 on all cards. The HIS Radeon HD 2900 Pro keeps the GeForce 8800 GTS 320 in its sights up to 1920x1200 and manages to just beat it out at the resolution common to 30in LCD monitors. Given the architecture, it's all rather predictable.