POWERCOLOR ATI HD4870 X2 2GB D5 2DH PCIE 47125050-23069

PowerColor HD 4870X2 2GB GDDR5
PartNumber : AX4870X2 2GBD5-H
GraphicsEngine RADEON 4870
VideoMemory 2GB GDDR5
EngineClock 750MHz
MemoryClock 900MHz (3.6Gbps)
MemoryInterface 256bit+256
DirectX Support 10.1
BusStandard PCIE 2.0
Features:
* 1.912 billion processors (956 million transistors per GPU on 55nm fabrication process)
* PCI Express 2.0 x16 bus interface
* 256-bit + 256 bit GDDR5 memory interface
* 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 1600 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
o 128-bit floating point precision for all operations
o Command processor for reduced CPU overhead
o Shader instruction and constant caches
o Up to 320 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 AvivoTMHD Video and Display Platform1
o 2nd generation Unified Video Decoder (UVD 2)
+ Enabling hardware decode acceleration of H.264, VC-1 and MPEG-2
+ Dual stream playback (or Picture-in-picture)
* Hardware MPEG-1, and DivXvideo decode acceleration
o Motion compensation and IDCT
* ATI AvivoVideo Post Processor1
o New enhanced DVD up-conversion to HD
o New automatic and dynamic contrast adjustment
o Color space conversion
o Chromasubsamplingformat conversion
o Horizontal and vertical scaling
o Gamma correction
o Advanced vector adaptive per-pixel de-interlacing
o De-blocking and noise reduction filtering
o Detail enhancement
o Inverse telecine(2:2 and 3:2 pull-down correction)
o Bad edit correction
o Full score in HQV (SD) and HQV (HD) video quality benchmarks
* Two independent display controllers
o Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display
o Full 30-bit display processing
o Programmable piecewise linear gamma correction, color correction, and color space conversion
o Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
o High quality pre- and post-scaling engines, with underscan support for all display outputs
o Content-adaptive de-flicker filtering for interlaced displays
o Fast, glitch-free mode switching
o Hardware cursor
* Two integrated DVI display outputs
o Primary supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)2
o Secondary supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI only)2
o Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3
* Two integrated 400MHz 30-bit RAMDACs
o Each supports analog displays connected by VGA at all resolutions up to 2048x15361
* HDMI output support
o Supports all display resolutions up to 1920x10802
o Integrated HD audio controller with up to 2 channel 48 kHz stereo or multi-channel (7.1) AC3 enabling a plug-and-play cable-less audio solution
* Integrated AMD XilleonTMHDTV encoder
o Provides high quality analog TV output (component/S-video/composite)
o Supports SDTV and HDTV resolutions
o Underscanand overscancompensation
* MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding
* Seamless integration of pixel shaderswith video in real time
* VGA mode support on all display outputs
* ATI PowerPlayTM Technology4
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
o Central thermal management –on-chip sensor monitors GPU temperature and triggers thermal actions as required
* Dual Mode ATI CrossFireXTM Multi-GPU Technology
o Scale up rendering performance and image quality with up to fourGPUs
o Integrated compositing engine
o High performance bridge interconnect
1. ATI AvivoTM HD is a technology platform that includes a broad set of capabilities offered by certain ATI RadeonTM HD GPUs. Not all products have all features and full enablement of some ATI AvivoTM HD capabilities may require complementary products.
2. Playing HDCP content requires additional HDCP ready components, including but not limited to an HDCP ready monitor, Blu-ray or HD DVD disc drive, multimedia application and computer operating system.
3. ATI PowerPlayTM technology consists of numerous power saving features. Not all features may be available in all ATI Radeon HD 4800 Series graphics cards.
Specification:
GraphicsEngine RADEON 4870
VideoMemory 2GB GDDR5
EngineClock 750MHz
MemoryClock 900MHz (3.6Gbps)
MemoryInterface 256bit+256
DirectX Support 10.1
BusStandard PCIE 2.0
VideoInput
VGAOutput Yes, By DVI to VGA converter
HDTVOutput Yes, By HDTV Cable
TVOutput Yes
DVIOutput DVI X 2
Dual-link DVI Yes
HDMISupport Yes, By DVI to HDMI Adapter
HDCPSupport Yes
Adapter_CableBundled Manual、DVI Dongle、HDMI Dongle、S-Video to AV、CrossFire Cable、DVI to HDMI Convertor
SoftwareBundled Driver CD