AMD Rushes Out Catalyst 13.2 Beta 5 Driver to Correct 3DMark CrossFire Scaling Issue
 

AMD rushed out a new beta version of its Catalyst driver suite, which addresses the issue of improper performance scaling on the new 3DMark, on CrossFire multi-GPU setups. The new Catalyst 13.2 Beta 5 adds a CrossFire profile for 3DMark v1.00 launched on Monday (04/02). Along the way, it also introduced a couple of performance improvements in some highly specific scenarios. For systems running Far Cry 3 at 2560 x 1600 pixels, with 8x AA, performance could go up by 10 percent. With a refined profile, the driver could dole out up to 40 percent higher performance in Crysis 3, on CrossFire setups.

http://www.techpowerup.com/179842/AM...ing-Issue.html