Overview

Optimized for use with Apple Mac Pro systems, the ATI Radeon HD 3870 Mac® & PC edition allows you to experience the power of HD with graphics processing designed for how you work and play¹. Drive productivity with built-in 256-bit 512MB GDDR4 frame buffer memory and 320 stream processors delivering maximum performance for graphics-intensive applications, including 3D modeling, animation and games. Expand your visual workspace using twin dual-link DVI ports to connect two 30” Apple Cinema HD displays®.

Power Professional Applications
Superior performance and visual quality make this graphics card ideal for creative and professional applications on Apple Mac Pro systems, including Aperture™, Motion and Final Cut Studio®. Take advantage of the latest graphics features and drive productivity at an extraordinary price.

Advance to the Next Generation of HD Gaming¹
Advance to the next generation of gaming with incredible performance and life-like graphics. Unified Shader Architecture provides the ultimate realistic game playing experience. With PCI Express® 2.0 support, you’re ready for games that will demand fast throughput.

Break-through Efficiency
ATI Radeon™ HD 3800 Series graphics processors have break-through efficiency, with up to twice the processing performance per watt than previous generations of high-end AMD graphics cards. And with a 55nm chip designed to use less power, your system can run efficiently and quietly.

Specifications

• 666 million transistors on 55nm fabrication process
• PCI Express 2.0 x16 bus interface
• 256-bit GDDR3/GDDR4 memory interface
• Ring Bus Memory Controller
  • Fully distributed design with 512-bit internal ring bus for memory reads and writes
• Unified Superscalar Shader Architecture
  • 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 80 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
  • Physics processing support
• Dynamic Geometry Acceleration
  • High performance vertex cache
  • 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)
  • Adaptive super-sampling and multi-sampling
  • Temporal anti-aliasing
  • Gamma correct
  • 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
  • Bicubic 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 2.0 support
  • 32-bit floating point texture filtering
• ATI Avivo™ HD Video and Display Platform²
  • Dedicated unified video decoder (UVD) for H.264/AVC and VC-1 video formats
• Hardware MPEG-1, MPEG-2, and DivX video decode acceleration
  • Motion compensation and IDCT
• ATI Avivo Video Post Processor
  • 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 dual-link DVI display outputs
  • Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)^3,4
• Two integrated 400 MHz 30-bit RAMDACs
  • Each supports analog displays connected by VGA at all resolutions up to 2048x1536
• HDMI output support
  • Supports all display resolutions up to 1920x1080
• 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™
  • 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
• 1-Year Manufacturer Warranty.

1. HD monitor required for full HD enjoyment
2. ATI Avivo™ HD is a technology platform that includes a broad set of capabilities offered by certain ATI Radeon™ HD GPUs. Not all products have all features and full enablement of some ATI Avivo™ HD capabilities may require complementary products.
3. While the ATI Radeon™ HD 3870 Mac & PC edition does support 30-bit digital display under the Mac OS, display output is limited to 24-bit and below.
4. Some resolutions are limited by the performance of the attached monitor and some custom resolutions require user configuration.

System Requirements—Mac

• PCI Express® based Mac Pro is required with one X16 lane graphics slot available on the motherboard
• 450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended
• 1GB of system memory recommended
• Installation software requires an optical drive
• DVD playback requires DVD drive
• OWC NOTE: Requires Mac Pro running Mac OS X 10.5.2 or later

System Requirements—PC

• PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt and two 6-pin connectors for dual ATI CrossFireX™)
• Certified power supplies are recommended
• 1GB of system memory recommended
• Installation software requires an optical drive
• DVD playback requires DVD drive
• Blu-ray™ / HD DVD playback requires a Blu-ray / HD DVD drive
• For a complete ATI CrossFireX™ system, additional ATI Radeon™ HD 3800 series graphics card(s), an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per board (included) are required