AMD Radeon HD 6870 vs HD 7770
Comparison of Radeon HD 6870 and Radeon HD 7770 architecture, market type and release date.
Radeon HD 6870 and Radeon HD 7770's general performance parameters such as number of shaders, GPU core clock, manufacturing process, texturing and calculation speed. These parameters indirectly speak of Radeon HD 6870 and Radeon HD 7770's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Core clock speed
Manufacturing process technology
Power consumption (TDP)
Texture fill rate
50.4 GTexel / s
Compatibility, dimensions and requirements
Information on Radeon HD 6870 and Radeon HD 7770 compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop video cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
Parameters of memory installed on Radeon HD 6870 and Radeon HD 7770: its type, size, bus, clock and resulting bandwidth. Note that GPUs integrated into processors don't have dedicated memory and use a shared part of system RAM.
Maximum RAM amount
Memory bus width
Memory clock speed
134.4 GB / s
Video outputs and ports
Types and number of video connectors present on Radeon HD 6870 and Radeon HD 7770.
2x DVI, 1x HDMI, 2x mini-DisplayPort
Technological solutions and APIs supported by Radeon HD 6870 and Radeon HD 7770. You'll probably need this information if you need some particular technology for your purposes.
APIs supported by Radeon HD 6870 and Radeon HD 7770, sometimes including their particular versions.
DirectX 11.1, Shader 5.1
Non-gaming benchmarks performance of Radeon HD 6870 and Radeon HD 7770. Note that overall benchmark performance is measured in points in 0-100 range.
Overall benchmark performance
HD 6870 5.62 +6.8%
HD 7770 5.26
3DMark Cloud Gate GPU
HD 6870 26437 +40.8%
HD 7770 18782
3DMark Fire Strike Score
HD 6870 3002 +15.5%
HD 7770 2600
3DMark Fire Strike Graphics
HD 6870 3141 +11.2%
HD 7770 2825
3DMark 11 Performance GPU
HD 6870 4218 +36.2%
HD 7770 3098
3DMark Vantage Performance
HD 6870 17773 +26.3%
HD 7770 14073
HD 6870 2137 +3.3%
HD 7770 2068
Rendering quality tests
GFXBench render quality
GFXBench high precision render quality
Cryptocurrency mining performance of Radeon HD 6870 and Radeon HD 7770. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
213 Mh/s +36.5%
156 Mh/s −36.5%
Let's see how good Radeon HD 6870 and Radeon HD 7770 are for gaming. Particular gaming benchmark results are measured in FPS.
Advantages of AMD Radeon HD 6870
6.8% faster in synthetic tests
Wider memory bus (256 vs 128 bit)
More pipelines (1120 vs 640)
Advantages of AMD Radeon HD 7770
Much newer (15 February 2012 vs 22 October 2010)
Cheaper ($129.99 vs $239)
Finer manufacturing process technology (28 vs 40 nm)
Eyefinity (allows using several displays with an AMD GPU)
So, HD 6870 or HD 7770?
Technical City couldn't decide between AMD Radeon HD 6870 and AMD Radeon HD 7770. The differences in performance seem too small.
Should you still have questions on choice between Radeon HD 6870 and Radeon HD 7770, ask them in Comments section, and we shall answer.