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ATI Radeon HD 4550 Graphics - Technical Review!

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With all the latest features, the ATI Radeon™ HD 4550 graphics cards deliver an incredible visual experience with best in class performance. Enjoy unprecedented levels of graphics realism and play the latest games with support for Microsoft DirectX® 10.1. Add this graphics card to your PC and watch Blu-ray movies and HD content play with incredible visual fidelity, and view digital photos with over 1 billion colors. Do it all with break-through efficiency that doesn’t compromise performance.

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Features & Benefits
  • 80 Stream Processing Units provide enough power to tackle demanding games and applications.
  • Enhanced Anti-Aliasing (AA) & Anisotropic Filtering (AF) - High performance anisotropic filtering and anti-aliasing (4X AA) smooth jagged edges and create true-to-life graphics, for everything from grass to facial features.
  • Watch the hottest Blu-ray movies or other HD content at full 1080p1 display resolution and beyond.3
  • Integrated DisplayPort technology4 with audio is an innovative digital solution that supports the latest graphics and LCD technologies.
  • The ATI Radeon™ HD 4550 graphics card consumes less than 25 watts under full load, making it the ideal choice for implementation across a large diverse install base of desktop PCs.
  • Second generation 55nm chip uses the industry’s most energy efficient manufacturing process.

  1. Blu-ray drive and HD capable monitor required.
  2. Requires a 10-bit display.
  3. The ATI Radeon HD 4550 GPUs can upscale video display to 2560x1600 on dual-link monitors which is almost twice the display resolution of 1080p displays.
  4. The ATI Radeon HD 4550 GPUs are capable of outputting DisplayPort signals. Manufacturers of ATI Radeon HD 4550 graphics cards may choose to implement this functionality – you may inquire of them which models, if any, support Display Port.

ATI Radeon™ HD 4550 Graphics Specifications
  • 242 million transistors on 55nm fabrication process
  • PCI Express 2.0 x16 bus interface
  • GDDR3/DDR3/DDR2 memory interface (depending on model)
  • Microsoft® DirectX® 10.1 support
    • Shader Model 4.1
    • 32-bit floating point texture filtering
    • 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
    • 80 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 32 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 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

  • Dynamic Geometry Acceleration
    • Programmable tessellation unit
    • Accelerated geometry shader path 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 12x Custom Filter Anti-Aliasing (CFAA) for superior quality
    • Adaptive super-sampling and multi-sampling
    • Gamma correct
    • Super AA (ATI CrossFireX™ configurations only)
    • All anti-aliasing features compatible with HDR rendering

  • Texture filtering features
    • 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 3.2 support
  • ATI Avivo™ HD Video and Display Platform
    • 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 DivX video decode acceleration
      • Motion compensation and IDCT

    • ATI Avivo Video Post Processor
      • 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

    • 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

    • 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)
      • Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content3

    • Two integrated 400 MHz 30-bit RAMDACs
      • Each supports analog displays connected by VGA at all resolutions up to 2048x1536

    • DisplayPort™ output 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 solution

    • HDMI output support
      • Supports all display resolutions up to 1920x1080
      • 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 Xilleon™ 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 shaders with video in real time
    • VGA mode support on all display outputs

  • ATI PowerPlay™ Technology5
    • 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 CrossFireX™ Multi-GPU Technology
    • Scale up rendering performance and image quality with two GPUs
    • Integrated compositing engine

  • PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
  • 300 Watt or greater power supply (350 Watt for ATI CrossFireX™ technology in dual mode) is recommended
  • 1GB of system memory recommended
  • Installation software requires CD-ROM drive
  • Blu-ray™ playback requires Blu-ray drive and full 1080p display requires a 1080p-capable monitor
  • For Microsoft DirectX® 10.1 support, Windows Vista® Service Pack 1 is required
  • To enable dual mode ATI CrossFireX™ technology, a second ATI Radeon™ HD 4550 Series graphics card, and an ATI CrossFireX Ready motherboard are required



  1. vrishtisingh's Avatar
    Wow !!!!! so nice features....