RADEON™X1900 XT Chipset Features and Specifications
• Support for Microsoft® DirectX® 9.0 programmable vertex and pixel shaders in hardware.
• DirectX® 9.0 Vertex Shaders
- Vertex programs up to 65,280 instructions with flow control
- Single cycle trigonometric operations (SIN & COS)
• DirectX® Extended 9.0 Pixel Shaders
- Up to 1,536 instructions and 16 textures per rendering pass
- 32 temporary and constant registers
- Facing register for two-sided lighting
- 128-bit, 64-bit & 32-bit per pixel floating point color formats
- Multiple Render Target (MRT) support
• Complete feature set also supported in OpenGL® via extensions
• 2x/4x/6x Anti-Aliasing modes & 2x/4x/8x/16x Anisotropic Filtering modes
• High quality 4:1 Normal Map Compression
• Works with any two-channel data format
• 3-level Hierarchical Z-Buffer with Eany Z Test
• Lossless Z-Buffer Compression (up to 48:1)
• Fast Z-Buffer Clear and Z Cache optimized for real-time shadow rendering
• Optimized for performance at high display resolutions, including widescreen HDTV resolutions
• Seamless integration of pixel shaders with video in real time
• FULLSTREAM™ video de-blocking technology for Real, DivX, and WMV9 formats
• VIDEOSOAP™ noise removal filtering for captured video
• MPEG1/2/4 decode and encode acceleration
• Adaptive Per-Pixel De-Interlacing and Frame Rate Conversion (temporal filtering)
• Innovative 90nm process technology

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: 256-bit
• Memory Clock Speed: 1450MHz
• Engine Clock Speed: 625MHz
• Pixel Shader Processor: 48
• Vertex Shader: 8
• Peak Pixel Fill Rate: 10 Gpixels/s
• Operating Systems Support Windows® XP / 2000
• Power supply of 450 (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.