NVIDIA Geforce 8400 GS
NVIDIA GeForce 8 series graphics processing units (GPUs) redefine the PC gaming experience. With a revolutionary unified architecture and full support for Microsoft DirectX 10 games, GeForce 8 series GPUs deliver unprecedented performance, extraordinarily detailed environments, and film quality game effects.

NVIDIA Unified Architecture
Fully unified shader core dynamically allocates processing power to geometry, vertex, physics, or pixel shading operations, delivering an incredibly true-to-life 3D graphics.

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NVIDIA Lumenex Engine
Support for 128-bit and 64-bit floating point HDR with up to 16x anti-aliasing delivering vividly realistic lighting effects while obliterating ‘jaggies'.

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Microsoft DirectX 10 Geometry Shaders
Dynamic geometry creation smoothes surfaces and enables incredibly detailed environments, shadows, and effects.

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NVIDIA Quantum Effects Technology
Advanced shader processors architected for physics computation deliver amazing performance and visual effects such as smoke, fire, and explosions.

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Shader Model 4.0 Technology
Get your box geared up for the future of games with blazing fast shader performance and watch your characters sweat with Shader Model 4.0.

NVIDIA Extreme HD
Go beyond standard high definition (HD) and experience Extreme High Definition (XHD), the ultimate widescreen, ultra-high-resolution PC experience made possible by NVIDIA GeForce graphics processing units (GPUs). XHD has over 7x the picture clarity of native 1080i HD televisions and 2x the picture clarity of 1080p HD televisions on today's hottest PC games.

NVIDIA PureVideo HD Technology
Available on HD DVDs and Blu-ray discs, high-definition movies are bringing an exciting new video experience to PC users. NVIDIA PureVideo HD technology lets you enjoy cinematic-quality HD DVD and Blu-ray movies with low CPU utilization and power consumption, allowing higher quality movie playback and picture clarity.

High Dynamic Range (HDR)
High dynamic-range(HDR) lighting effects bring environments to life for a truly immersive experience. It takes advantage of the subtle light, texture, and color intricacies to create incredibly realistic environments.

NVIDIA ForceWare
It takes a powerful suite of software to complement these complex processors. NVIDIA ForceWare unified software environment (USE) is the key to unleashing the full power and features in NVIDIA's desktop, platform, mobile, and multimedia products. Delivering a proven record of compatibility, reliability, and stability with the widest range of games and applications, ForceWare ensures the best out-of-box experience for every user and delivers.

Windows Vista Ready
Windows Vista is the first operating system to require a GPU (Graphics Processing Unit) to realize the best experience possible.

PCI Express Support
PCI Express is a new Intel bus architecture that doubles the bandwidth of the AGP 8X bus, delivering over 4 GB per second in both upstream and downstream data transfers.

XFX GeForce 8400 GS 512MB PCIe Specifications