Here are the latest graphics drivers for Battlefield 3 supported by AMD and GeForce.
Nvidia: 285.79 Beta (released today)
http://www.nvidia.com/object/win7-winvi ... river.html [nvidia.com]
http://www.nvidia.com/object/win7-winvi ... river.html [nvidia.com]
AMD: 11.10
http://sites.amd.com/us/game/downloads/ ... n7-64.aspx [sites.amd.com]
http://sites.amd.com/us/game/downloads/ ... n7-32.aspx [sites.amd.com]
If you are using Crossfire also install 11.9 CAP4 (Crossfire Application Profile):
http://sites.amd.com/us/game/downloads/ ... files.aspx [sites.amd.com]