In case you didn't hear, the ATi Catalyst 6.8 drivers are now available.

Improved shader compiler and transform engine optimizations have led to many significant performance gains in OpenGL applications across the entire Radeon® X1000 series of products. These include:

* Doom 3 performance improves as much as 6.5%
* Quake 4 (v1.2 or higher) performance improves as much as 18%
* Chronicles of Riddick performance improves as much as 20%. Average improvements of 5-10% are commonly seen
* Prey performance improves as much as 16%