This is a WHQL-certified driver for GeForce 6, 7, 8, 9, and 200-series desktop GPUs.

Exciting New Features:

Added support for GeForce GTX 295 and GeForce GTX 285
Enables NVIDIA SLI technology on SLI-certified Intel X58-based motherboards with all SLI-certified GPUs.
Enables NVIDIA SLI Multi-monitor support, giving you the ability to use two monitors with your GeForce graphics cards in SLI mode. Now you can easily switch between multi-monitor desktop mode and full screen 3D gaming mode. Learn more here.
Enables NVIDIA PhysX acceleration on a dedicated GeForce graphics card. Use one card for graphics and dedicate a different card for PhysX processing for game-changing physical effects. Learn more here. (Note: GPU PhysX is supported on all GeForce 8-series, 9-series and 200-series GPUs with a minimum of 256MB dedicated graphics memory. This driver package automatically installs PhysX System Software version 8.10.13).
Supports GeForce Plus Power Pack #2. Download these free PhysX and CUDA applications now!
Added support for the new NVIDIA CUDA Video Encoder with H.264 optimization

Blazing Fast Performance:

Boosts performance in numerous 3D applications. The following are some examples of improvements measured with Release 180 drivers vs. Release 178 drivers (results will vary depending on your GPU, system configuration, and game settings):
Up to 10% performance increase in 3DMark Vantage (performance preset)
Up to 13% performance increase in Assassin's Creed
Up to 13% performance increase in BioShock
Up to 15% performance increase in Company of Heroes: Opposing Fronts
Up to 10% performance increase in Crysis Warhead
Up to 25% performance increase in Devil May Cry 4
Up to 38% performance increase in Far Cry 2
Up to 18% performance increase in Race Driver: GRID
Up to 80% performance increase in Lost Planet: Colonies
Up to 18% performance increase in World of Conflict

And More:

Supports single GPU and NVIDIA SLI technology on DirectX 9, DirectX 10, and OpenGL, including 3-way and Quad SLI technology.
Supports CUDA.
Supports Folding@home distributing computing application. Download the high performance client for NVIDIA GPUs here and join the NVIDIA team: #131015.
Supports GPU overclocking and temperature monitoring by installing NVIDIA System Tools software.
Includes numerous 3D application compatibility fixes. Please read the release notes for more information on product support, features, driver fixes and known compatibility issues.
Users without US English operating systems can select their language and download the International driver here.