Benchmarks: Company of Heroes, Crysis Warhead
The Radeon HD 5830 was able to match the GeForce GTX 275 in Company of Heroes at 2560x1600, making it just 4% or 2fps faster than the Radeon HD 4890. It was also 11% slower than the GeForce GTX 285, and as much as 29% slower than the Radeon HD 5850 -- which worked out to be 20fps.
Crysis Warhead results were very poor across the board and at all three tested resolutions. The Radeon HD 5830 was able to match the Radeon HD 4890 and GeForce GTX 275 in terms of performance, while it was just 2fps slower than the GeForce GTX 285 and Radeon HD 5850 at 2560x1600.