ATI / AMD have recently released Catalyst 12.11 Beta Driver Suite
You can download it here: http://support.amd.com/us/kbarticles/Pages/AMDCatalyst1211betadriver.aspx
FEATURE HIGHLIGHTS OF THE AMD CATALYST 12.11 BETA DRIVER:
This driver introduces significant performance improvements for many games across ALL 28nm AMD Radeon™ HD 7000 Series products: HD 7700, HD7800 and HD7900
Performance Highlights of the AMD CATALYST 12.11 BETA Driver
• 10%-15% more performance in Battlefield 3 in most cases
◦ More than 20% in certain missions and sequences (Comrades)
• Up to 7% more performance in Metro 2033
• Up to 10% more performance in DIRT Showdown
• Up to 8% more performance in Sleeping Dogs
• Up to 12% more performance in Civilization V
• Up to 10% more performance in StarCraft II
• Up to 8% more performance in Sniper Elite: V2
Resolved issue highlights of AMD Catalyst 12.11 Beta Driver
• Medal of Honor: Warfighter; AMD Catalyst 12.11 Beta4 resolves an application crash found when running in AMD CrossFire mode with Anti-Aliasing enabled (This issue was observed in the AMD Catalyst 12.11 Beta3; The AMD Catalyst 12.11 Beta4 has replaced the AMD Catalyst 12.11 Beta3 driver that was posted Oct 22 2012).
• Resolves performance issues (where GPU activity runs at lower values than expected) seen on the AMD Radeon HD 7870.
• AMD Catalyst Mobility 7970M performance for AMD Enduro™ Technology supported platforms has been substantially improved for DirectX 10 and DirectX 11 applications. An updated driver for 7970M users featuring AMD Enduro™ Technology with additional DirectX 9 performance improvements will be released soon.
◦ 3DMark Vantage – Up to 15%
◦ 3DMark 11 – Up to 12%
◦ AvP – Up to 11%
◦ Battlefield 3 – Up to 25%
◦ Crysis 2: Up to 45%
◦ DiRT Showdown – Up to 62%
◦ ETQW – Up to 8%
◦ Hard Reset – Up to 8%
◦ Just Cause 2 – Up to 90%
◦ The Chronicles of Riddick – Up to 4%
◦ Shogun 2 – Up to 56%
◦ Sniper Elite V2 – Up to 60%
◦ Tom Clancy’s HAWX – Up to 56%
◦ Unigine Heaven – Up to 33%
◦ Wolfenstein – Up to 9%