Besides some new WHQL certified drivers, NVIDIA also released the GeForce 185.65 beta drivers, you can download the drivers over here for Windows XP and Vista. GeForce 185.65 beta adds support for the GeForce GTX 275 and features Ambient Occlusion. Additionally, the driver also promises various performance improvements over the GeForce 182 driver series.
Adds support for the new GeForce GTX 275 GPU.
Adds support for Ambient Occlusion – the newest NVIDIA Control Panel feature to offer enhanced 3D gaming realism exclusively to GeForce GPUs.
Adds support for CUDA 2.2 for improved performance in GPU Computing applications. See www.nvidia.com/cuda for more details.
Accelerates performance in several 3D applications. The following are examples of improvements measured with Release 185 drivers vs. Release 182 drivers (results will vary depending on your GPU, system configuration, and game settings):
Up to 11% performance increase in Call of Duty: World at War
Up to 5% performance increase Company of Heroes: Opposing Fronts
Up to 22% performance increase Crysis: Warhead with antialiasing enabled
Up to 11% performance increase in Fallout 3 with antialiasing enabled
Up to 14% performance increase in Far Cry 2
Up to 45% performance increase in Mirror’s Edge with antialiasing enabled
Numerous bug fixes. Refer to the release documentation notes.