Dirt 2 is the game we’ve installed Win7 for, so that we can reap the full benefits of DX11. Although DX11 is still not a standard feature in games, Dirt 2 does utilize some of its functions. The effects are slightly better than when using DirectX 9, but the game is pretty fast-paced, so you won’t exactly notice whether there’s more pebbles and other objects on the track. Our HD 5770 Vapor-X handled the game admirably though and we managed to play Dirt 2 at 1920x1200.