PowerColor HD4890 1GB GDDR5 (BBA) (AX4890 1GBD5-HM) 956 million transistors on 55nm fabrication process PCI ExpressR 2.0 x16 bus interface 256-bit GDDR5 memory interface MicrosoftR DirectXR 10.1 support 32-bit floating point texture filte indexed cube map arrays.

Technical Details

• Indexed cube map arrays
• Independent blend modes per render target
• Pixel coverage sample masking
• Read/write multi-sample surfaces with shaders
• Gather4 texture fetching
• Unified Superscalar Shader Architecture
• 800 stream processing units
• Dynamic load balancing and resource allocation for vertex, geometry, and pixel shaders
• Common instruction set and texture unit access supported for all types of shaders
• Dedicated branch execution units and texture address processors
• 128-bit floating point precision for all operations
• Command processor for reduced CPU overhead
• Shader instruction and constant caches
• Up to 160 texture fetches per clock cycle
• Up to 128 textures per pixel
• Fully associative multi-level texture cache design
• DXTC and 3Dc+ texture compression
• High resolution texture support (up to 8192 x 8192)
• Fully associative texture Z/stencil cache designs
• Double-sided hierarchical Z/stencil buffer
• Early Z test, Re-Z, Z Range optimization, and Fast Z Clear
• Lossless Z & stencil compression (up to 128:1)
• Lossless color compression (up to 8:1)
• 8 render targets (MRTs) with anti-aliasing support
• Accelerated physics processing
• Dynamic Geometry Acceleration
• High performance vertex cache
• Programmable tessellation unit
• Accelerated geometry shaderpath for geometry amplification
• Memory read/write cache for improved stream output performance
• Anti-aliasing features
• Multi-sample anti-aliasing (2, 4, or 8 samples per pixel)
• Up to 24x Custom Filter Anti-Aliasing (CFAA)
• Adaptive super-sampling and multi-sampling
• Gamma correct
• Super AA (ATI CrossFireXTMconfigurations only)
• All anti-aliasing features compatible with HDR renderin
• Texture filtering featur
• 2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
• 128-bit floating point HDR texture filtering sRGB filtering (gamma/degamma)
• Percentage Closer Filtering (PCF)
• Depth & stencil texture (DST) format support
• Shared exponent HDR (RGBE 9:9:9:5) texture format support
• OpenGL 3.0 support
• ATI AvivoTM HD Video and Display Platform1
• Unified Video Decoder 2 (UVD) for H.264/AVC, VC-1, and MPEG-2 video formats
• High definition (HD) playback of Blu-ray and HD DVD video2
• Dual stream (HD+SD) playback support
• DirectX Video Acceleration 1.0 & 2.0 support
• Support for BD-Live certified applications
• Hardware DivXand MPEG-1 video decode acceleration
• AIT AvivoVideo Post Processor1
• Color space conversion
• Chroma subsampling format conversion
• Horizontal and vertical scaling
• Gamma correction
• Advanced vector adaptive per-pixel de-interlacing
• De-blocking and noise reduction filtering
• Detail enhancement
• Color vibrance and flesh tone correction
• Inverse telecine (2:2 and 3:2 pull-down correction)
• Bad edit correction
• Enhanced DVD upscaling (SD to HDƣ
• Automatic dynamic contrast adjustment
• Two independent display controllers
• Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each
• display
• Full 30-bit display processing
• Programmable piecewise linear gamma correction, color correction, and color space conversion
• Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
• High quality pre- and post-scaling engines, with underscan support for all display outputs
• Content-adaptive de-flicker filtering for interlaced displays
• Fast, glitch-free mode switching
• Hardware cursor
• Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (duallink DVIƝ
• Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content4
• Each supports analog displays connected by VGA at all resolutions up to 2048x15362
• HDMI output support
• All display resolutions up to 1920x10803
• Integrated HD audio controller with support for stereo and multi-channel (up to 7.1) audio formats, including AC-3, AAC,
• DTS5, enabling a plug-and-play audio solution over HDMI
• Integrated AMD XilleonTM HDTV encoder
• Provides high quality analog TV output (component/S- video/composite)
• Supports SDTV and HDTV resolutions
• Underscan and overscan compensation
• Seamless integration of pixel shaderswith video in real time
• VGA mode support on all display outputs
• ATI PowerPlayTM Technology6
• Advanced power management technology for optimal performance and power savings
• Performance-on-Demand
• Constantly monitors GPU activity, dynamically adjusting clocks and voltage based on user scenario
• Clock and memory speed throttling
• Voltage switching
• Dynamic clock gating
• Central thermal management-on-chip sensor monitors GPU temperature and triggers thermal actions as required
• ATI CrossFireXTM Multi-GPU Technology7
• Scale up rendering performance and image quality with two, three, or four GPUs
• Integrated compositing engine
• High performance dual channel bridge interconnect8

Specifications

• Graphics Engine : RADEON HD4890
• Video Memory : 1GB GDDR5
• Engine Clock : 850MHz
• Memory Clock : 975MHz (3.9Gbps)
• Memory Interface : 256bit
• DirectX Support : 10.1
• Bus Standard : PCIE 2.0
• VGA Output : Yes, By DVI to VGA converter
• HDTV Output : Yes, By HDTV Cable
• TV Output : Yes
• DVI Output : DVI-I x 2
• Dual-link DVI : Yes
• HDMI Support : Yes, By DVI to HDMI Adapter
• HDCP Support : Yes

Site link

http://www.powercolor.com/Global/index.asp

Support and Service

http://www.powercolor.com/Global/support.asp