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Written by David Ramsey   
Wednesday, 15 February 2012
Table of Contents: Page Index
XFX Radeon R7770 Black Edition Video Card
AMD Southern Islands GPU
Closer Look: XFX Radeon HD 7770
FX-777A-ZDSC Detailed Features
Features and Specifications
Video Card Testing Methodology
DX11: 3DMark11
DX11: Crysis 2
DX11: Batman: Arkham City
DX11: Aliens vs Predator
DX11: Lost Planet 2
DX11: Metro 2033
DX11: Unigine Heaven 2.5
XFX 7770 Super OC Temperatures
Power Consumption and Overclocking
XFX Radeon 7770 Final Thoughts
XFX R7770 Black Edition Conclusion

DX11: Unigine Heaven 2.5

The Unigine "Heaven 2.1" benchmark is a free publicly available tool that grants the power to unleash the graphics capabilities in DirectX-11 for Windows 7 or updated Vista Operating Systems. It reveals the enchanting magic of floating islands with a tiny village hidden in the cloudy skies. With the interactive mode, emerging experience of exploring the intricate world is within reach. Through its advanced renderer, Unigine is one of the first to set precedence in showcasing the art assets with tessellation, bringing compelling visual finesse, utilizing the technology to the full extend and exhibiting the possibilities of enriching 3D gaming.

The distinguishing feature in the Unigine Heaven benchmark is a hardware tessellation that is a scalable technology aimed for automatic subdivision of polygons into smaller and finer pieces, so that developers can gain a more detailed look of their games almost free of charge in terms of performance. Thanks to this procedure, the elaboration of the rendered image finally approaches the boundary of veridical visual perception: the virtual reality transcends conjured by your hand. The "Heaven" benchmark excels at providing the following key features:

  • Native support of OpenGL, DirectX 9, DirectX-10 and DirectX-11
  • Comprehensive use of tessellation technology
  • Advanced SSAO (screen-space ambient occlusion)
  • Volumetric cumulonimbus clouds generated by a physically accurate algorithm
  • Dynamic simulation of changing environment with high physical fidelity
  • Interactive experience with fly/walk-through modes
  • ATI Eyefinity support
  • Unigine Heaven 2.5
    • High Shaders, Normal tessellation, 4xAA, 8xAF


Cost Analysis: Unigine Heaven (1920x1200)

  • $139.00 GeForce GTX 460 costs $5.99 per FPS
  • $190.00 GeForce GTX 560 costs $6.31 per FPS
  • $330.00 GeForce GTX 570 costs $9.54 per FPS
  • $135.00 Radeon HD 6850 costs $5.34 per FPS
  • $240.00 Radeon HD 6950 costs $7.06 per FPS
  • $180.00 Radeon HD 7770 costs $7.23 per FPS
  • Test Summary: The XFX HD7770 matches the 6850 in this test, which is impressive.

    Graphics Card GeForce GTX 460 GeForce GTX 560 GeForce GTX570 Radeon HD6850 Radeon HD6950 Radeon HD7770
    GPU Cores 336 384 480 960 1408 640
    Core Clock (MHz) 675 822 732 775 850 1120
    Shader Clock (MHz) 1350 1645 1464 N/A N/A N/A
    Memory Clock (MHz) 1800 2100 1900 1000 1300 1300
    Memory Amount 1GB 1GB 1280 MB GDDR5 1GB GDDR5 2GB GDDR5 1GB GDDR5
    Memory Interface 256-bit 256-bit 320-bit 256-bit 256-bit 128-bit


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