Update your ATI Radeon video card drivers to the latest release.
This release for all Radeon family products updates the AMD display driver to the latest version. This unified driver has been further enhanced to provide the highest level of power, performance, and reliability.
Support added for AMD Radeon HD7790 and AMD Radeon HD 7990
Catalyst Driver optimizations to improve performance in Far Cry 3, Crysis 3, and 3DMark
Significantly improves latency performance in Skyrim, Boderlands 2, Guild Wars 2, Tomb Raider and Hitman Absolution