Benchmarks: World in Conflict, X3 Terran Conflict
World in Conflict Soviet Assault is a detailed strategy game that is extremely GPU demanding. The Radeon HD 4770 does well delivering 13% more performance than the GeForce 9800 GT at 1920x1200. Other more expensive cards like the GeForce 9800 GTX+ were faster however.
Although the Radeon HD 4770 was a bit slower than the Radeon HD 4850 in X3 Reunion Terran Conflict, it got to beat the GeForce 9800 GTX+ and thus the GeForce 9800 GT.