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Powercolor HD4670 PCS Review

ccokeman    -   October 21, 2008
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Specifications:

 

Graphics Engine
RADEON HD4670
  
Video Memory 
512MB GDDR3
Engine Clock
750MHz
Memory Clock
1000MHz x 2
Memory Interface
128bit
DirectX Support
10.1
Bus Standard
PCIE 2.0

 

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




  1. Introduction & Closer Look
  2. Closer Look (The Video Card)
  3. Closer Look (Drivers & Programs)
  4. Closer Look (Catalyst Control Center)
  5. Specifications & Features
  6. Testing: Setup & Overclocking
  7. Testing: Crysis
  8. Testing: Knights of the Sea
  9. Testing: BioShock
  10. Testing: Call of Duty 4
  11. Testing: World In Conflict
  12. Testing: Call of Juarez
  13. Testing: Company of Heroes - Opposing Fronts
  14. Testing: 3DMark06 Professional
  15. Testing: 3DMark Vantage
  16. Conclusion
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