Tambutsoo
Moderator
Posts : 483
Join date : 2009-06-29
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 Subject: FS: Powercolor ATI Radeon HD 4870 PCS+  Tue Mar 16, 2010 11:25 pm |
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Powercolor ATI Radeon HD 4870 PCS+ 512mb (256bit) ddr5
* 956 million transistors on 55nm fabrication process
* PCI Express 2.0 x16 bus interface
* 256-bit GDDR5
* MicrosoftR DirectXR 10.1 support
o ShaderModel 4.1
o 32-bit floating point texture filtering
o Indexed cube map arrays
o Independent blend modes per render target
o Pixel coverage sample masking
o Read/write multi-sample surfaces with shaders
o Gather4 texture fetching
* Unified Superscalar Shader Architecture
o 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
o Command processor for reduced CPU overhead
o Shader instruction and constant caches
o Up to 160 texture fetches per clock cycle
o Up to 128 textures per pixel
o Fully associative multi-level texture cache design
o DXTC and 3Dc+ texture compression
o High resolution texture support (up to 8192 x 8192)
o Fully associative texture Z/stencil cache designs
o Double-sided hierarchical Z/stencil buffer
o Early Z test, Re-Z, Z Range optimization, and Fast Z Clear
o Lossless Z & stencil compression (up to 128:1)
o Lossless color compression (up to 8:1)
o 8 render targets (MRTs) with anti-aliasing support
o Accelerated physics processing
* Dynamic Geometry Acceleration
o High performance vertex cache
o Programmable tessellation unit
o Accelerated geometry shaderpath for geometry amplification
o Memory read/write cache for improved stream output performance
* Anti-aliasing features
o Multi-sample anti-aliasing (2, 4, or 8 samples per pixel)
o Up to 24x Custom Filter Anti-Aliasing (CFAA) for improved quality
o Adaptive super-sampling and multi-sampling
o Gamma correct
o Super AA (ATI CrossFireXTMconfigurations only)
o All anti-aliasing features compatible with HDR renderin
* Texture filtering features
o 2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
o 128-bit floating point HDR texture filtering
o sRGB filtering (gamma/degamma)
o Percentage Closer Filtering (PCF)
o Depth & stencil texture (DST) format support
o Shared exponent HDR (RGBE 9:9:9:5) texture format support
* OpenGL 2.0 support
* ATI AvivoTM HD Video and Display Platform6
o Unified Video Decoder 2 (UVD 2) for H.264/AVC, VC-1, and MPEG-2 video formats
+ High definition (HD) playback of Blu-ray and HD DVD video
+ Dual stream (HD+SD) playback support
+ DirectX Video Acceleration 1.0 & 2.0 support
+ Support for BD-Live certified applications
o Hardware DivXand MPEG-1 video decode acceleration
o Accelerated video transcoding& encoding for H.264 and MPEG-2 formats
o AIT AvivoVideo Post Processor6
+ 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 HD)
+ Automatic dynamic contrast adjustment
o 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
o Two integrated dual-link DVI display outputs
+ Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)2
+ Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3
o Two integrated 400 MHz 30-bit RAMDACs
+ Each supports analog displays connected by VGA at all resolutions up to 2048x15362
o HDMI output support
+ All display resolutions up to 1920x10802
+ Integrated HD audio controller with support for stereo and multi-channel (up to 7.1) audio formats, including AC-3, AAC, DTS, DTS-HD & Dolby True- HD4, enabling a plug-and-play audio solution over HDMI
o Integrated AMD XilleonTM HDTV encoder
+ Provides high quality analog TV output (component/S- video/composite)
+ Supports SDTV and HDTV resolutions
+ Underscan and overscan compensation
o Seamless integration of pixel shaderswith video in real time
o VGA mode support on all display outputs
* ATI PowerPlayTM Technology5
o Advanced power management technology for optimal performance and power savings
o 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 每 on-chip sensor monitors GPU temperature and triggers thermal actions as required
* ATI CrossFireXTM Multi-GPU Technology
o Scale up rendering performance and image quality with two, three, or four GPUs
o Integrated compositing engine
o High performance dual channel bridge interconnect1
pm me for pricing 
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