AMD has released the Catalyst 13.2 Beta 5 driver here.
FEATURE HIGHLIGHTS OF THE AMD CATALYST 13.2 BETA 5 DRIVER
Crysis 3 multi-player Beta: Improves CrossFire scaling by up to 40%
Far Cry 3: Improves performance up to 10% at 2560x1600 with 8xAA
New 3D Mark release: Adds CrossFire profile support for the new 3D Mark release under Windows 8