DiRT 2
DiRT 2, a lovely-looking racer and one of the first games to use a DX11 path offers improved visuals whilst burning through the London map.
It's a close-run thing in DiRT 2. The twin-GPU HD 5970 slides past the GTX 580 at the highest resolution. Both provide silky-smooth gameplay, though. The gap between the GTX 580 and 480 is the largest we've seen thus far in any game. The extra PolyMorph engine - 16 vs. 15 - and CUDA cores - 512 vs. 480 - and enhanced FP16 filtering really helps in this title.
| Comparison at 25x16 | GTX 480 | HD 5870 | HD 5970 |
| Faster/slower (per cent) | +27.2 | +40.8 | -0.4 |