2560x1600 - Gaming Performance
Running at 2560x1600 the 4xFSAA option becomes too aggressive resulting in high-end graphics cards such as the GeForce GTX 580 averaging just 38fps. It took a pair of GeForce GTX 580 graphics cards to crack 60fps and this is about the only configuration that provided playable performance, other than perhaps the GeForce GTX 590.
Once again we find that MLAA is far more hardware-friendly and even at 2560x1600 graphics cards such as the Radeon HD 6870 averaged 46fps, while the GeForce GTX 570 managed 47fps. The higher end cards such as the GeForce GTX 580 managed 62fps, while the Radeon HD 6970 trailed with an average of 58fps.
The GeForce GTX 580 SLI configuration delivered an incredible 88fps.