AMD Radeon HD 6870 vs HD 7770

AMD Radeon HD 6870
AMD Radeon HD 7770

General info

Comparison of Radeon HD 6870 and Radeon HD 7770 architecture, market type and release date.
Place in performance rating
Value for money (0-100)
Terascale 2
Code name
RV940 Barts
Cape Verde
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Release date
22 October 2010
15 February 2012
Launch price (MSRP)
Price now

Technical specs

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
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1000 MHz
Boost Clock
900 MHz
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Transistor count
1,700 million
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Manufacturing process technology
40 nm
28 nm
Power consumption (TDP)
151 Watt
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Texture fill rate
50.4 GTexel / s
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Floating-point performance
2,016.0 gflops
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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).
Bus support
PCIe 2.0 x16
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PCIe 2.0 x16
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220 mm
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Supplementary power connectors
2x 6-pin
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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.
Memory type
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1050 MHz
4500 MHz
Memory bandwidth
134.4 GB / s
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Shared memory

Video outputs and ports

Types and number of video connectors present on Radeon HD 6870 and Radeon HD 7770.
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
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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.
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API support

APIs supported by Radeon HD 6870 and Radeon HD 7770, sometimes including their particular versions.
DirectX® 11
DirectX 11.1, Shader 5.1
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Benchmark performance

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
4546 −0.1%
4549 +0.1%
GFXBench high precision render quality
4546 −0.1%
4549 +0.1%

Mining hashrates

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%

Gaming performance

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.

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AMD Radeon HD 6870
AMD Radeon HD 7770

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