RADEON™X1800 XT Chipset Features and Specifications

SMARTSHADER™ HD
• Support for Microsoft® DirectX® 9.0 programmable vertex and pixel shaders in hardware
• Shader Model 3.0 vertex and pixel sgader support:
- Full speed 32-bit floating point processing
- High dynamic range rendering with floating point blending and anti-aliasing support
- High performance dynamic branching and flow control
• Complete feature set also supported in OpenGL® 2.0


Anti-Aliasing and Anisotropic Filtering
• 2x/4x/6x Anti-Aliasing modes
- Sparse multi-sample algorithm with gamma correction, programmable sample patterns, and centroid sampling
- New adaptive anti-aliasing mode.
- Lossless Color Compression (up to 6:1)at all resolutions, including widescreen HDTV resolutions
- Temporal Anti-Aliasing
• 2x/4x/8x/16x Anisotropic Filtering modes
- Up to 128-tap texture filtering
- Adaptive anisotropic filtering algorithm with bilinear (performance) and trilinear (quality) options


3DC+™ Advanced Texture Compression
• High quality 4:1 Normal Map Compression
• Works with any two-channel data format


Next-Generation HYPER Z™ Technology
• Hierachical Z-Buffer with Early Z Test.
• Lossless Z-Buffer Compression (up to 48:1)
• Fast Z-Buffer Clear
• Z Cache optimized for real-time shadow rendering
• Optimized for performance at high display resolutions, including widescreen HDTV resolutions


Avivo™ Video and Display Engine
• New advanced video capabilities including high fidelity gamma, colo correction and scaling
• Dual independent display controllers that support true 30-bpp throughout the display pipe
- Full symmetry on both heads
- Each display controller supports display resolutions beyond 2560 x 1600
• Advanced DVI capabilities including 10-bit, 16-bit HDR output
• YPrPb compnent output for direct drive of HDTV displays
• Seamless integration of pixel shaders with cideo in real time
• VIDEOSOAP™ noise removal filtering for captured video
• MPEG1/2/4 decode and encode acceleration
- DXVA support
- Hardware motion compensation, iDCT, DCT and color space coversion.
• All-format DTV/HDTV decoding
• Adaptive per-pixel de-interlacing and frame rate conversion (temporal filtering)


CrossFire™ Supoprt
• Lossless Z-Buffer Compression (up to 48:1) Multi-GPU technology ready.
• Four modes of operation
- Alternate frame rendering for maximum performance
- Supertiling for optimal load-balabmcing
- Scissoring for compatibility
- Super AA for maximum image quality


PERFORMANCES
• Memory interface: 128-bit
• Memory Clock Speed: 1500MHz
• Engine Clock Speed: 625MHz
• Pixel Shader Processor: 16
• Peak Pixel Fill Rate: 10GB/s
• Peak Vertex Throughput: 1250
• Operating Systems Support Windows® XP / 2000
• Power supply of 350 (and up) watt is highly recommended for system stability
• 2D Display Modes: Resolutions, colors and maximum refresh rates(Hz) in 256, 65K or 16.7M colors.