World in Conflict
GTX 275 manages to beat the HD 5830 and the performance difference is more evident in tests with antialiasing, where the GTX 275 wins by about 17%. The HD 5830 proves that it’s there to fill the gap between the HD 5850 and HD 5770 as its results are 20% lower and higher, respectively. So, Sapphire HD 5830 has what it takes to provide comfortable gaming in World in Conflict at all the resolutions, except on 2560x1600 with antialiasing on.
Dirt2 features DirectX 11 effects and as such it clearly favors ATI. If you’re using Geforce cards, all of which are DirectX10, the settings will automatically choose DirectX9. This causes the GTX 275 to perform better on paper than HD 5850 or HD 5830 cards, but naturally at the cost of eye candy effects. We can confirm that Sapphire HD 5830 will spin Dirt2 at 2560x1600 with no trouble whatsoever.