This is the first driver release from the Release 260 family of drivers . This driver package supports GeForce 6, 7, 8, 9, 100, 200, 300, and 400-series desktop GPUs as well as ION desktop GPUs.

We have a discussion thread open on these drivers right here.

New in Release 260.63

New GPU Support

Adds support for the newly released GeForce GTS 450 GPU.
Performance

Increases performance for GeForce GTX 400 Series GPUs in several PC games vs. v258.96 WHQL drivers. The following are examples of some of the most significant improvements measured. Results will vary depending on your GPU and system configuration:
GeForce GTX 480:

Up to 10% in StarCraft II (2560x1600 4xAA/16xAF Ultra)
Up to 14% in S.T.A.L.K.E.R.: Call of Pripyat (1920x1200 4xAA/16xAF)
Up to 16% in S.T.A.L.K.E.R.: Call of Pripyat (SLI – 2560x1600 4xAA/16xAF)
Up to 6% in Aliens vs. Predator (SLI – 1920x1200 noAA – Tessellation on)
GeForce GTX 460:

Up to 19% in StarCraft II (SLI – 1920x1200 4xAA/16xAF Ultra)
Up to 15% in Battlefield Bad Company 2 (SLI – 2560x1600 4xAA/16xAF)
Up to 12% in S.T.A.L.K.E.R.: Call of Pripyat (2560x1600 noAA)
Up to 9% in Aliens vs. Predator (1680x1050 4xAA/16xAF – Tessellation on)
Up to 7% in Metro 2033 (1680x1050 noAA – Tessellation on)
Up to 11% in Dirt 2 (SLI – 2560x1600 4xAA/16xAF)
Up to 12% in Crysis:Warhead (SLI – 1920x1200 4xAA/16xAF Gamer)
Up to 13% in Far Cry 2 (2560x1600 4xAA/16xAF)
Up to 12% in H.A.W.X (SLI – 1920x1200 4xAA/16xAF SSAO Very High)
Up to 5% in Just Cause 2 (1920x1200 4xAA/16xAF)
Up to 22% in Riddick: Assault on Dark Athena (1920x1200 noAA)
Up to 5% in 3DMark Vantage (Extreme Preset)
HD Audio

Upgrades HD Audio driver to version 1.1.9.0.
Installation

New driver installer with enhanced user interface and new Express and Custom installation options.
Express – one-click installation
Custom – customized installation
Option to perform a clean installation (completely removes older drivers from your system prior to installing the new driver).
Option to choose which driver components (ie. PhysX or 3D Vision) to install.
Improved installation time for multi-GPU PCs.
Other Improvements

Upgrades PhysX System Software to version 9.10.0514.
Includes numerous bug fixes. Refer to the release notes on the documentation tab for information about the key bug fixes in this release.
Users without US English operating systems can select their language and download the International driver here.
Additional Information:

Supports the new GPU-accelerated features in Adobe CS5.
Supports GPU-acceleration for smoother online HD videos with Adobe Flash 10.1. Learn more here.
Supports the new version of MotionDSP's video enhancement software, vReveal, which adds support for HD output. NVIDIA customers can download a free version of vReveal that supports up to SD output here.
Supports OpenCL 1.0 (Open Computing Language) for all GeForce 8-series and later GPUs.
Supports OpenGL 3.3 for GeForce 8-series and later GPUs.
Supports single GPU and NVIDIA SLI technology* on DirectX 9 and OpenGL.
Supports GPU overclocking and temperature monitoring by installing NVIDIA System Tools software.