GeForce 8400 GS

NVIDIA Unified Architecture

* Unified shader architecture
* GigaThread technology
* Full support for Microsoft DirectX 10
o Geometry shaders
o Geometry instancing
o Streamed output
o Shader Model 4.0
* Full 128-bit floating point precision through the entire rendering pipeline

NVIDIA Lumenex Engine

* 16x full screen anti-aliasing
* Transparent multisampling and transparent supersampling
* 16x angle independent anisotropic filtering
* 128-bit floating point high dynamic-range (HDR) lighting with anti-aliasing
o 32-bit per component floating point texture filtering and blending
* Advanced lossless compression algorithms for color, texture, and z-data
* Support for normal map compression
* Z-cull
* Early-Z

NVIDIA Quantum Effects Technology

* Advanced shader processors architected for physics computation
* Simulate and render physics effects on the graphics processor

NVIDIA TurboCache Technology

* Combines the capacity and bandwidth of dedicated video memory with dynamically allocated system memory to dramatically turbocharge performance.

NVIDIA SLI Technology

* Patented hardware and software technology allows two GeForce-based graphics cards to run in parallel to scale performance and enhance image quality on today's top titles.

NVIDIA PureVideo HD Technology

* Dedicated on-chip video processor
* High-definition H.264, VC-1, MPEG2 and WMV9 decode acceleration
* Advanced spatial-temporal de-interlacing
* HDCP capable
* Spatial-Temporal De-Interlacing
* Noise Reduction
* Edge Enhancement
* Bad Edit Correction
* Inverse telecine (2:2 and 3:2 pull-down correction)
* High-quality scaling
* Video color correction
* Microsoft Video Mixing Renderer (VMR) support

Advanced Display Functionality

* Two dual-link DVI outputs for digital flat panel display resolutions up to 2560x16004
* One dual-link DVI outputs for digital flat panel display resolutions up to 2560x16005
* One single-link DVI outputs for digital flat panel display resolutions up to 1920x120066
* Dual integrated 400MHz RAMDACs for analog display resolutions up to and including 2048x1536 at 85Hz
* Integrated HDTV encoder provides analog TV-output (Component/Composite/S-Video) up to 1080i resolution
* NVIDIA nView multi-display technology capability
* 10-bit display processing

Built for Microsoft Windows Vista

* Full DirectX 10 support
* Dedicated graphics processor powers the new Windows Vista Aero 3D user interface
* VMR-based video architecture

High Speed Interfaces

* Designed for PCI Express x16
* Designed for high-speed GDDR3 and DDR2 memory

Operating Systems

* Built for Microsoft Windows Vista
* Windows XP/Windows XP 64
* Linux

API Support

* Complete DirectX support, including Microsoft DirectX 10 Shader Model 4.0
* Full OpenGL support, including OpenGL 2.0