NVIDIA PhysX technology adds an element of realism never before seen in gaming. The NVIDIA PhysX System Software was designed to add support for NVIDIA PhysX on GeForce 9800 GTX, GeForce GTX 280, and GeForce GTX 260 GPUs, including SLI configurations. Experience GPU PhysX acceleration today by downloading the Unreal Tournament 3 PhysX Mod Pack.

With an NVIDIA GeForce GPU in your PC, experience dynamic PhysX effects like blazing explosions, reactive debris, realistic water, and lifelike characters.

NVIDIA PhysX Features:
1. Supports NVIDIA PhysX acceleration on all GeForce 8-series, 9-series and 200-series GPUs with a minimum of 256MB dedicated graphics memory.
2. Experience GPU PhysX acceleration in many games and demos, some of which are highlighted in PowerPack downloads on www.geforce.com.
3. Resolves PhysX SDK runtime issues with multi-GPU configurations in Hybrid environments.
4. Improves performance of some PhysX enabled games on GeForce GTX 285 and GTX 295 products.
5. Resolves occasional system crashes when PhysX is enabled on some systems when running on EA's Mirrors Edge.
6. Runtime upgrade ONLY for AGEIA PhysX processors users. (New installations should install older PhysX system program such as version 8.09.04 ?prior to installing this update).
7. Includes the latest PhysX runtimes used in the latest game titles.
8. Supports NVIDIA PhysX acceleration on GeForce via CUDA 2.0 for SDK versions 2.7.3, 2.7.2, 2.7.5, 2.8.0 and 2.8.1 (requires graphics driver v177.81 or later).
9. Includes all the latest PhysX SDK Runtimes.
10. Supports latest combines PhysX and SLI control panel featured in the latest GeForce drivers.

NVIDIA PhysX is a strong physics engine enabling real-time physics in leading edge PC games. PhysX program is widely adopted by over 150 games and is used by more than 10,000 developers. PhysX is optimized for hardware acceleration by massively parallel processors. GeForce GPUs with PhysX provide an exponential increase in physics processing power taking gaming physics to the next level.

With NVIDIA PhysX technology, game worlds literally come to life: walls can be torn down, glass can be shattered, trees bend in the wind, and water flows with body and force. NVIDIA GeForce GPUs with PhysX deliver the computing horsepower necessary to enable true, advanced physics in the next generation of game titles making canned animation effects a thing of the past.

Which NVIDIA GeForce GPUs support PhysX?
GeForce 8-series GPUs and later (with a minimum of 32 cores and a minimum of 256MB dedicated graphics memory) support PhysX.

How does PhysX work with SLI and multi-GPU configurations?
When two, three, or four matched GPUs are working in SLI, PhysX runs on one GPU, while graphics rendering runs on all GPUs. The NVIDIA drivers optimize the available resources across all GPUs to balance PhysX computation and graphics rendering. Therefore users can expect much higher frame rates and a better overall experience with SLI.

Why is a GPU good for physics processing?
The multi-threaded PhysX engine was designed specifically for hardware acceleration in massively parallel environments. GPUs are the natural place to compute physics calculations because, like graphics, physics processing is driven by thousands of parallel computations. Today, NVIDIA's GPUs, have as many as 480 cores, so they are well-suited to take advantage of PhysX software. NVIDIA is committed to making the gaming experience exciting, dynamic, and vivid. The combination of graphics and physics impacts the way a virtual world looks and behaves.

The license of this software is Freeware, you can free download and free use this driver & update software.