Specifications 

Radeon® X1900 Graphics Technology - GPU Specifications Features 384 million transistors on 90nm fabrication process Up to 48 pixel shader processors 8 vertex shader processors 256-bit 8-channel GDDR3 memory interface Native PCI Express x16 bus interface Ring Bus Memory Controller Up to 512-bit internal ring bus for memory reads Fully associative texture, color, and Z/stencil cache designs Hierarchical Z-buffer with Early Z test Lossless Z Compression (up to 48:1) Fast Z-Buffer Clear Optimized for performance at high display resolutions, including widescreen HDTV resolutions Ultra-Threaded Shader Engine Support for Microsoft® DirectX® 9.0 Shader Model 3.0 programmable vertex and pixel shaders in hardware Full speed 128-bit floating point processing for all shader operations Up to 512 simultaneous pixel threads Dedicated branch execution units for high performance dynamic branching and flow control Dedicated texture address units for improved efficiency 3Dc+ texture compression o High quality 4:1 compression for normal maps and two-channel data formats High quality 2:1 compression for luminance maps and single-channel data formats Complete feature set also supported in OpenGL® 2.0 Advanced Image Quality Features 64-bit floating point HDR rendering supported throughout the pipeline Includes support for blending and multi-sample anti-aliasing 32-bit integer HDR (10:10:10:2) format supported throughout the pipeline Includes support for blending and multi-sample anti-aliasing 2x/4x/6x Anti-Aliasing modes Multi-sample algorithm with gamma correction, programmable sparse sample patterns, and centroid sampling New Adaptive Anti-Aliasing feature with Performance and Quality modes Temporal Anti-Aliasing mode Lossless Color Compression (up to 6:1) at all resolutions, including widescreen HDTV resolutions 2x/4x/8x/16x Anisotropic Filtering modes Up to 128-tap texture filtering Adaptive algorithm with Performance and Quality options High resolution texture support (up to 4k x 4k) Avivo™ Video and Display Platform High performance programmable video processor Accelerated MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264 decoding and transcoding DXVA support De-blocking and noise reduction filtering Motion compensation, IDCT, DCT and color space conversion Vector adaptive per-pixel de-interlacing 3:2 pulldown (frame rate conversion) Seamless integration of pixel shaders with video in real time HDR tone mapping acceleration Maps any input format to 10 bit per channel output Flexible display support Dual integrated dual-link DVI transmitters DVI 1.0 compliant / HDMI interoperable and HDCP ready* Dual integrated 10 bit per channel 400 MHz DACs 16 bit per channel floating point HDR and 10 bit per channel DVI output Programmable piecewise linear gamma correction, color correction, and color space conversion (10 bits per color) Complete, independent color controls and video overlays for each display High quality pre- and post-scaling engines, with underscan support for all outputs Content-adaptive de-flicker filtering for interlaced displays Xilleon™ TV encoder for high quality analog output YPrPb component output for direct drive of HDTV displays Spatial/temporal dithering enables 10-bit color quality on 8-bit and 6-bit displays Fast, glitch-free mode switching VGA mode support on all outputs Drive two displays simultaneously with independent resolutions and refresh rates Compatible with ATI TV/Video encoder products, including Theater 550

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