ATI Catalyst 7.1 is released
 

As with most Catalyst® releases, performance has increased in various situations. In this release of Catalyst® Dark Messiah: Might and Magic performance improves as much as 12% on all ATI Radeon X1000 Series products.

Catalyst 7.1 includes Crossfire enhancements that enable the Alternate Frame Rendering (AFR) Crossfire rendering mode by default, enabling performance benefits for all AFR compatible applications immediately (including newly released applications that have not been officially profiled for Crossfire). Future Catalyst releases will add further Crossfire performance gains once new applications have been profiled specifically for Crossfire. Please note that applications already profiled for AFR will not see any performance benefits from this feature.

http://ati.amd.com/support/driver.html