Powercolor HD4670 PCS Review

Specifications:

Features:

• 514 million transistors on 55nm fabrication process
• PCI Express 2.0 x16 bus interface
• GDDR3/DDR3/DDR2 memory interface (depending on model)
• 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 320 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 128 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
            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 rendering
• 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 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)
            o Hardware MPEG-1, and DivXvideo decode acceleration
                  + Motion compensation and IDC
            o ATI AvivoVideo Post Processor1
                  + Enhanced DVD up-conversion to HD
                  + 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
                  + Inverse telecine(2:2 and 3:2 pull-down correction)
                  + Bad edit correction
                  + Automatic dynamic contrast adjustment
                  + Full score in HQV (SD) and HQV (HD) video quality benchmarks
            o One 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 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 underscansupport for all display outputs
                  + Content-adaptive de-flicker filtering for interlaced displays
                  + Fast, glitch-free mode switching
                  + Hardware cursor
            o Two integrated DVI display outputs
                  + Primary supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI) 2
                  + Secondary supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI only)2
                  + Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3
            o Two integrated 400MHz 30-bit RAMDACs
                  + Each supports analog displays connected by VGA at all resolutions up to 2048x15361
            o DisplayPortTMoutput support
                  + Supports 24-and 30-bit displays at all resolutions up to 2560x16002
                  + 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 solution4
            o HDMI output support
                  + Supports all display resolutions up to 1920x10802
                  + 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 4
            o Integrated AMD XilleonTM HDTV encoder
                  + Provides high quality analog TV output (component/S-video/composite)
                  + Supports SDTV and HDTV resolutions
                  + Underscanand overscancompensation
            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

All information supplied here courtesy of Powercolor@http://www.powercolor.com/eng/products_features.asp?ProductID=4542