HardOCP has taken a look at the performance and image quality of ATI's and NVIDIA's latest graphics cards in Crysis Warhead:
For this evaluation, we will be focusing on the current high end Enthusiast products from both AMD and NVIDIA, as well as the next step down, in the more mainstream Performance class. From NVIDIA, we're going to see how Warhead performs on the GeForce GTX 280 and GeForce GTX 260 (original). And from AMD, we'll be checking out the ATI Radeon HD 4870 X2 and Radeon HD 4870. These video cards represent the four highest performing options available today.
Check it out over here. The site concludes the GeForce GTX 280 gave them the best overall gameplay experience, followed closely by the Radeon HD 4870 X2.