The latest Codemaster title, F1 2011 uses a slight development of the F1 2010 and DiRT 3 engine, which retains DirectX 11 support.
We pushed all the graphics options to a max and we used the game’s own test tool on the Spa-Rancorchamps circuit with a single F1.
At 1920x1080, there was a 30% gain. Note the AMD solutions are limited by the CPU much sooner than the NVIDIA solutions.
At very high resolution, there’s a gain of 45%.