AMD have released their Catalyst 13.2 beta drivers, which include improvements of up to 15% in MSAA-based use within the Crysis 3 beta. There's some more performance increases, too, as well as the usual bug fixes.
These new drivers 'significantly improves latency performance' in Skyrim, Borderlands 2 and Guild Wars 2, as well as improves the single-GPU performance in Devil May Cry by up to 50%. CrossFire performance is improved by around 10% for Crysis 2 and we should see the texture flickering screen problems in DirectX 9.0c applications resolved.
You can download the new Catalyst 13.2 beta drivers directly from this link.