The Radeon HD 5870 performs well in Unreal Tournament 3, beating the Radeon HD 4870 X2 by 5fps at 2560x1600. This also made the Radeon HD 5870 7fps faster than the GeForce GTX 285, and 24fps faster than the Radeon HD 4870. The only graphics card to defeat the Radeon HD 5870 was the GeForce GTX 295.
When testing with World in Conflict at 2560x1600, the Radeon HD 5870 delivered 46% more performance than the 4870. With an average of 35fps, it was only defeated by the Radeon HD 4870 X2 and GeForce GTX 295. The margins were quite large, though, with the GeForce GTX 295 producing 37% more performance.