AMD Radeon HD 6870 vs HD 6790

AMD Radeon HD 6870
AMD Radeon HD 6790

General info

Comparison of Radeon HD 6870 and Radeon HD 6790 architecture, market type and release date.
Place in performance rating
Value for money (0-100)
Terascale 2
Terascale 2
Code name
RV940 Barts
no data
Release date
22 October 2010
4 April 2011
Launch price (MSRP)
Price now

Technical specs

Radeon HD 6870 and Radeon HD 6790'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 6790's performance, but for precise assessment you have to consider its benchmark and gaming test results.
Core clock speed
no data
840 MHz
Boost Clock
900 MHz
no data
Transistor count
1,700 million
1,700 million
Manufacturing process technology
40 nm
40 nm
Power consumption (TDP)
151 Watt
150 Watt
Texture fill rate
50.4 GTexel / s
33.6 GTexel / s
Floating-point performance
2,016.0 gflops
1,344.0 gflops

Compatibility, dimensions and requirements

Information on Radeon HD 6870 and Radeon HD 6790 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
no data
PCIe 2.0 x16
PCIe 2.0 x16
220 mm
198 mm
Supplementary power connectors
2x 6-pin
2x 6-pin


Parameters of memory installed on Radeon HD 6870 and Radeon HD 6790: 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
256 Bit
Memory clock speed
1050 MHz
1050 MHz
Memory bandwidth
134.4 GB / s
134.4 GB / s
Shared memory
no data

Video outputs and ports

Types and number of video connectors present on Radeon HD 6870 and Radeon HD 6790.
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x HDMI, 1x DisplayPort


Technological solutions and APIs supported by Radeon HD 6870 and Radeon HD 6790. You'll probably need this information if you need some particular technology for your purposes.

API support

APIs supported by Radeon HD 6870 and Radeon HD 6790, sometimes including their particular versions.
DirectX® 11

Benchmark performance

Non-gaming benchmarks performance of Radeon HD 6870 and Radeon HD 6790. Note that overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance

HD 6870 5.62 +11.7%
HD 6790 5.03

3DMark Fire Strike Graphics

HD 6870 3141 +46.1%
HD 6790 2150

3DMark 11 Performance GPU

HD 6870 4218 +46.1%
HD 6790 2887

3DMark Vantage Performance

HD 6870 17773 +30.3%
HD 6790 13637


HD 6870 2137 +7.9%
HD 6790 1981

Rendering quality tests

GFXBench render quality
4546 +0%
4546 +0%
GFXBench high precision render quality
4546 +0%
4546 +0%

Mining hashrates

Cryptocurrency mining performance of Radeon HD 6870 and Radeon HD 6790. Usually measured in megahashes per second.
Bitcoin / BTC (SHA256)
213 Mh/s +74.6%
122 Mh/s −74.6%

Gaming performance

Let's see how good Radeon HD 6870 and Radeon HD 6790 are for gaming. Particular gaming benchmark results are measured in FPS.

Advantages of AMD Radeon HD 6870

11.7% faster in synthetic tests
More pipelines (1120 vs 800)

Advantages of AMD Radeon HD 6790

Somewhat newer (4 April 2011 vs 22 October 2010)
Cheaper ($149 vs $239)
Less power hungry (150 vs 151 watts)

So, HD 6870 or HD 6790?

Judging by the results of synthetic and gaming tests, Technical City recommends AMD Radeon HD 6870.
Should you still have questions on choice between Radeon HD 6870 and Radeon HD 6790, ask them in Comments section, and we shall answer.

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AMD Radeon HD 6870
AMD Radeon HD 6790

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Advices and comments

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