RécapitulatifAlthough individual game results are interesting, we calculated a performance index based on all tests with the same weight for each game. An index of 100 was given to the GeForce 9800 GT at 1680x1050.
On average, without antialiasing, the Radeon HD 4770 is placed between the GeForce 9800 GT and GTS 250 and is just behind the Radeon HD 4850. Note the net gain on the Radeon HD 4670 that is twice as powerful. The Radeon HD 4550 performance reminds us that entry level cards are very far behind the mid-range, in spite of the small price difference.
Once antialiasing has been activated, the Radeon HD 4000s do better in comparison. The Radeon HD 4770 overtakes the GeForce GTS 250 thanks to much better performances in S.T.A.L.K.E.R. Clear Sky and H.A.W.X. It has an advantage over the GeForce 9800 GT of around 25%.