Sapphire TOXIC Radeon HD 5970 Video Card Review :: Features

05-24-2010 · Category: Hardware - Video Cards

By Benjamin Sun
  • Dual GPUs with a total of 4.3 billion 40nm transistors
  • TeraScale 2 Unified Processing Architecture
    • 3200 Stream Processing Units
    • 160 Texture Units
    • 256 Z/Stencil ROP Units
    • 64 Color ROP Units
  • GDDR5 memory interface
  • PCI Express 2.1 x16 bus interface
  • DirectX 11 support
    • Shader Model 5.0
    • DirectCompute 11
    • Programmable hardware tessellation unit
    • Accelerated multi-threading
    • HDR texture compression
    • Order-independent transparency
  • OpenGL 3.2 support
  • Image quality enhancement technology
    • Up t
    • 24x multi-sample and super-sample anti-aliasing modes
    • Adaptive anti-aliasing
    • Super AA
    • 16x angle independent anisotropic texture filtering
    • 128-bit floating point HDR rendering
  • ATI Eyefinity multi-display technology
    • Three independent display controllers
      • Drive three displays simultaneously with independent resolutions, refresh rates, color controls, and vide
      • overlays
    • Display grouping
      • Combine multiple displays t
      • behave like a single large display
  • ATI Stream acceleration technology
    • OpenCL support
    • DirectCompute 11
    • Double precision floating point processing support
    • Accelerated vide
    • encoding, transcoding, and upscaling
      • Native support for common vide
      • encoding instructions
  • ATI CrossFireX™ multi-GPU technology
    • Dual card performance scaling
  • ATI Avivo™ HD vide
  • & display technology
    • UVD 2 dedicated vide
    • playback accelerator
    • Advanced post-processing and scaling
    • Dynamic contrast enhancement and color correction
    • Brighter whites processing (blue stretch)
    • Independent vide
    • gamma control
    • Dynamic vide
    • range control
    • Support for H.264, VC-1, and MPEG-2
    • Dual-stream 1080p playback support
    • DXVA 1.0 & 2.0 support
    • Integrated dual-link DVI output with HDCP
      • Max resolution: 2560x1600
    • Integrated DisplayPort output
      • Max resolution: 2560x1600
    • Integrated HDMI 1.3 output with Deep Color, xvYCC wide gamut support, and high bit-rate audi
      • Max resolution: 1920x12001
    • Integrated VGA output
      • Max resolution: 2048x1536
    • 3D stereoscopic display/glasses support
    • Integrated HD audi
    • controller
      • Output protected high bit rate 7.1 channel surround sound over HDMI with n
      • additional cables required
      • Supports AC-3, AAC, Dolby TrueHD and DTS Master Audi
      • formats
  • ATI PowerPlay™ power management technology
    • Dynamic power management with low power idle state
    • Ultra-low power state support for single and multi-board configurations
    • Certified drivers for Windows 7, Windows Vista, and Windows XP

    Model Number Sapphire TOXIC Radeon HD 5970 GDDR5 PCIE
    Graphics chip HD 5970
    Clock Speed 900MHz
    Shader Clock 900MHz
    SPs 1600x2
    Fabrication process 40nm
    Transistors 2.15 Billion x2
    Memory clock 4800MHz
    Memory Bus 256-bit
    Memory Bandwidth 153.6GB/s x2
    Memory Size 4096MB
    ROPs 32x2
    Texture filtering rate 68 Gigatexels/second
    HDCP Support Yes
    HDMI support Yes with adapter
    Connectors 6 DP
    RAMDACs 400MHz
    Bus PCI Express 2.0
    Form Factor Dual Slot
    Power connectors 8-pin x2

    The Sapphire TOXIC Radeon HD 5970 GDDR5 PCIE video card is based upon AMD’s Hemlock chip. This chip is nearly identical to the HD 5870 in terms of specifications except there are two of them on the card and the reference HD 5970 chips are clocked at 725MHz instead of the 850MHz reference clock for the HD 5870.

    Each of the two chips on the board has 2.15 billion transistors manufactured on TSMC’s 40nm fabrication process. AMD has been at the forefront of smaller fabrication process on video cards with the first 90nm chip, the first 65nm chip, the first 55nm chip and the first 40nm chip. Each of the two chips has 1600 Stream Processors, which is double that of the HD 5870.

    Every Evergreen chip including the HD 5970 supports up to six monitors on one card. The HD 5970 has connections for three monitors. AMD calls their multi-monitor support Eyefinity, with the ability to use more than two monitors requiring the use of a DisplayPort connector. Three monitor gaming was introduced by Matrox with their Parhelia. Three monitors have many practical uses for business people and those watching stocks.

    Microsoft released their latest Operating System Windows 7 with the latest version of DirectX, DirectX 11. DirectX 11 brings new features to video cards. Tessellation is the subdivision of larger triangles into groups of smaller triangles allowing for more finely detailed characters and objects. The HD R5970 from Sapphire will have a massive amount of tessellation hardware due to the card having two chips on one card at higher than HD 5870 frequencies.

    Sapphire brings some enhancements to the HD 5970 card over the reference card. First, the higher clock speed will allow the card to operate like two HD 5870s overclocked. The 900MHz clock speed is 50MHz higher than the reference HD 5870 chip and 175MHz faster than the reference HD 5970 card. The second improvement over the reference card is 4GB of memory, 2GB per chip instead of the 2GB that the reference card has. Sapphire claims this is the World’s Fastest Graphics Card which will be proven in the Performance area of the review.