Features
• 384 million transistors on 90nm fabrication process
• 48 pixel shader processors
• 8 vertex shader processors
• 256-bit 8-channel GDDR4 memory interface
• Native PCI Express x16 bus interface

Ring Bus Memory Controller
• 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
• 32-bit integer HDR (10:10:10:2) format supported throughout the pipeline
• 2x/4x/6x Anti-Aliasing modes
• 2x/4x/8x/16x Anisotropic Filtering modes
• High resolution texture support (up to 4k x 4k)

Avivo™ Video and Display Engine
• High performance programmable video processor
• Accelerated MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264 decoding (including DVD/HD-DVD/Blu-ray playback), encoding & 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 / HDMI compliant
• 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
• Compatible with ATI TV/Video encoder products, including Theater 550

CrossFire™
• Multi-GPU technology
• Four modes of operation:
• Alternate Frame Rendering (maximum performance)
• Supertiling (optimal load-balancing)
• Scissor (compatibility)
• Super AA 8x/10x/12x/14x (maximum image quality)

Power supply notes :
• Connection to the system power supply is required:
• 450-Watt power supply or greater, 30 Amps on 12 volt rail recommended (assumes fully loaded system)
• PCI Express compliant power supply (recommended). Connect directly to the power supply with a 6 pin PCI Express power connector
• For CrossFire™: 550 watt power supply or greater, 38 Amps on 12 volt rail