The Witcher 2 Enhanced Edition
The Witcher 2 graphics engine has been worked on gradually over time to give us the current version in the recent Enhanced Edition. Although it’s based on DirectX 9, it's relatively demanding once all the graphics options are pushed to a maximum, one of these being particularly demanding: UberSampling, a 4x supersampling type of antialiasing with a few optimisations.
We tested the game at maximum quality with and without UberSampling. Performance was measured with Fraps.
The GeForce GTX 670 is on a par with the Radeon HD 7950 while the Radeon HD 7970 is slightly in front of the GeForce GTX 680 but only without UberSampling.