Phoronix: AMD Radeon Catalyst: Windows 7 vs. Ubuntu 12.04 LTS

Now having compared the graphics driver performance between Microsoft Windows 7 and Ubuntu 12.04 Linux for the NVIDIA driver with the GeForce GTX 680 and the multi-platform Intel performance for Sandy Bridge and Ivy Bridge, here's a look at the AMD Catalyst driver performance with the Radeon HD 7950 graphics card when running between Windows 7 and Ubuntu Linux.

http://www.phoronix.com/vr.php?view=17375