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The ATI Mobility Radeon HD 4500 is a series of graphics card designed to deliver a superior visual experience.

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The ATI Mobility Radeon HD 4500 is a series of graphics card designed to deliver a superior visual experience and best in class performance on-the-go. It allows you to enjoy Blu-ray movies and other HD content with high fidelity and features dual stream Blu-ray picture-in-picture capabilities. You can also enjoy visually-intense applications, video and digital photos with over 1 billion colors. The 4500 series offers platform-independent intelligent power management delivering the required power for intense applications while conserving energy when at idle or when demand is low. Vari-Bright technology optimizes the brightness of the display to help save power and battery life is further extended thanks to platform independent graphics switching technology which lets you enjoy maximum performance when needed or long-battery life when on the go. Microsoft DirectX 10.1 support helps provide realistic graphics and smooth gameplay in the latest games and enhanced anti-aliasing and anisotropic filtering gives further game realism.

ATI Mobility Radeon HD 4500 Series Product Features
  • 242 million transistors on 55nm fabrication process
  • Unified Superscalar Shader Architecture
  • Microsoft DirectX 10.1 support
  • OpenGL 2.0 support
  • GDDR3/DDR3/DDR2 memory interface (depending on model) – PCI Express 2.0 x16 bus interface
  • 80 stream processing units
  • 12x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
  • ATI Avivo HD video and display technology
    • Unified Video Decoder 2 (UVD 2) for Blu-ray and HD Video
    • DVD Upscaling
    • Dynamic Contrast
    • Built-in HDMI with 7.1 surround sound support
    • DisplayPort with audio
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
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 (HD + SD) 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
    • Automatic dynamic contrast adjustment
  • 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
  • One integrated LVDS display output
    • Integrated LVDS display outputs for embedded panels
    • Supports 18- and 24-bit digital displays at all resolutions up to 1920x1200 (Dual-Channel LVDS)
  • Two integrated DVI display outputs
    • Supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)
    • 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 content
  • One integrated 400 MHz 30-bit RAMDACs
    • Supporting 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 2560x1600
    • 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 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
ATI PowerPlay Technology
  • 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
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