We got the retail PC version of Race Driver Grid.We tested it with Core Quad Q6600(oc 3GHz),2GB DDR2-1000,Radeon HD 3870 512MB GDDRR4 Graphics Card(Catalyst 8.4).

We found that the average fps is raised a little bit compared with the demo version of Race Driver Grid.

Obviously the developers kept on optimizing the game after the PC demo released.