R9 M270X vs HD 6790

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Combined performance score

HD 6790
4.17
+34.1%

HD 6790 outperforms R9 M270X by 34% in our combined benchmark results.

General info

GPU architecture, market segment, value for money and other general parameters compared.

Place in performance ranking644713
Place by popularitynot in top-100not in top-100
Value for money0.33no data
ArchitectureTerascale 2 (2009−2015)GCN 1.0 (2012−2020)
GPU code nameBartsVenus
Market segmentDesktopDesktop
Release date4 April 2011 (12 years old)21 March 2014 (10 years old)
Launch price (MSRP)$149 no data
Current price$184 (1.2x MSRP)no data
Value for money

Performance to price ratio. The higher, the better.

no data

Technical specs

General performance parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. These parameters indirectly speak of performance, but for precise assessment you have to consider their benchmark and gaming test results. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores800640
Compute unitsno data10
Core clock speed840 MHz725 MHz
Boost clock speedno data775 MHz
Number of transistors1,700 million1,500 million
Manufacturing process technology40 nm28 nm
Power consumption (TDP)150 Wattno data
Texture fill rate33.6031.00
Floating-point performance1,344.0 gflops1,536 gflops

Size and compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Bus supportno dataPCIe 3.0 x16
InterfacePCIe 2.0 x16PCIe 3.0 x16
Length198 mmno data
Width2-slotno data
Supplementary power connectors2x 6-pinno data

Memory

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR5GDDR5
Maximum RAM amount1 GB4 GB
Memory bus width256 Bit128 Bit
Memory clock speed1050 MHz1125 MHz
Memory bandwidth134.4 GB/s72 GB/s

Video outputs and ports

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors2x DVI, 1x HDMI, 1x DisplayPortNo outputs
Eyefinityno data1
HDMI+no data

Technologies

Supported technological solutions. This information will prove useful if you need some particular technology for your purposes.

AppAccelerationno data-
Endurono data-
FreeSyncno data1
HD3Dno data+
PowerTuneno data+
DualGraphicsno data1
TrueAudiono data-
ZeroCoreno data+
Switchable graphicsno data1

API support

List of supported graphics and general-purpose computing APIs, including their specific versions.

DirectX11.2 (11_0)DirectX® 11
Shader Model5.05.1
OpenGL4.44.4
OpenCL1.2Not Listed
VulkanN/Ano data
Mantleno data+

Synthetic benchmark performance

Non-gaming benchmark performance comparison. The combined score is measured on a 0-100 point scale.


Combined synthetic benchmark score

This is our combined benchmark performance score. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

HD 6790 4.17
+34.1%
R9 M270X 3.11

HD 6790 outperforms R9 M270X by 34% in our combined benchmark results.


Passmark

This is the most ubiquitous GPU benchmark, part of Passmark PerformanceTest suite. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

Benchmark coverage: 25%

HD 6790 1616
+34.2%
R9 M270X 1204

HD 6790 outperforms R9 M270X by 34% in Passmark.

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Average FPS across all PC games

Here are the average frames per second in a large set of popular games across different resolutions:

900p52
+48.6%
35−40
−48.6%
Full HD61
+35.6%
45−50
−35.6%

Performance in popular games

Full HD
Low Preset

Cyberpunk 2077 7−8
+40%
5−6
−40%

Full HD
Medium Preset

Assassin's Creed Odyssey 7−8
+40%
5−6
−40%
Assassin's Creed Valhalla 3−4
+50%
2−3
−50%
Battlefield 5 12−14
+50%
8−9
−50%
Call of Duty: Modern Warfare 14−16
+50%
10−11
−50%
Cyberpunk 2077 7−8
+40%
5−6
−40%
Far Cry 5 8−9
+60%
5−6
−60%
Far Cry New Dawn 8−9
+60%
5−6
−60%
Forza Horizon 4 12−14
+44.4%
9−10
−44.4%
Hitman 3 9−10
+50%
6−7
−50%
Horizon Zero Dawn 8−9
+60%
5−6
−60%
Red Dead Redemption 2 8−9
+60%
5−6
−60%
Shadow of the Tomb Raider 10−12
+37.5%
8−9
−37.5%
Watch Dogs: Legion 5−6
+66.7%
3−4
−66.7%

Full HD
High Preset

Assassin's Creed Odyssey 7−8
+40%
5−6
−40%
Assassin's Creed Valhalla 3−4
+50%
2−3
−50%
Battlefield 5 12−14
+50%
8−9
−50%
Call of Duty: Modern Warfare 14−16
+50%
10−11
−50%
Cyberpunk 2077 7−8
+40%
5−6
−40%
Far Cry 5 8−9
+60%
5−6
−60%
Far Cry New Dawn 8−9
+60%
5−6
−60%
Forza Horizon 4 12−14
+44.4%
9−10
−44.4%
Hitman 3 9−10
+50%
6−7
−50%
Horizon Zero Dawn 8−9
+60%
5−6
−60%
Metro Exodus 6−7
+50%
4−5
−50%
Red Dead Redemption 2 8−9
+60%
5−6
−60%
Shadow of the Tomb Raider 10−12
+37.5%
8−9
−37.5%
The Witcher 3: Wild Hunt 9−10
+50%
6−7
−50%
Watch Dogs: Legion 5−6
+66.7%
3−4
−66.7%

Full HD
Ultra Preset

Assassin's Creed Odyssey 7−8
+40%
5−6
−40%
Assassin's Creed Valhalla 3−4
+50%
2−3
−50%
Battlefield 5 12−14
+50%
8−9
−50%
Cyberpunk 2077 7−8
+40%
5−6
−40%
Far Cry 5 8−9
+60%
5−6
−60%
Far Cry New Dawn 8−9
+60%
5−6
−60%
Forza Horizon 4 12−14
+44.4%
9−10
−44.4%
The Witcher 3: Wild Hunt 9−10
+50%
6−7
−50%
Watch Dogs: Legion 5−6
+66.7%
3−4
−66.7%

1440p
High Preset

Call of Duty: Modern Warfare 7−8
+40%
5−6
−40%
Hitman 3 7−8
+40%
5−6
−40%
Horizon Zero Dawn 10−12
+37.5%
8−9
−37.5%
Metro Exodus 2−3
+100%
1−2
−100%
Red Dead Redemption 2 2−3
+100%
1−2
−100%
Shadow of the Tomb Raider 7−8
+40%
5−6
−40%

1440p
Ultra Preset

Assassin's Creed Odyssey 2−3
+100%
1−2
−100%
Cyberpunk 2077 2−3
+100%
1−2
−100%
Far Cry 5 6−7
+50%
4−5
−50%
Far Cry New Dawn 2−3
+100%
1−2
−100%
Forza Horizon 4 5−6
+66.7%
3−4
−66.7%
The Witcher 3: Wild Hunt 4−5
+100%
2−3
−100%

4K
High Preset

Call of Duty: Modern Warfare 3−4
+50%
2−3
−50%
Hitman 3 4−5
+100%
2−3
−100%
Horizon Zero Dawn 8−9
+60%
5−6
−60%
Red Dead Redemption 2 2−3
+100%
1−2
−100%
Shadow of the Tomb Raider 1−2 0−1
The Witcher 3: Wild Hunt 0−1 0−1

4K
Ultra Preset

Assassin's Creed Odyssey 2−3
+100%
1−2
−100%
Assassin's Creed Valhalla 2−3
+100%
1−2
−100%
Cyberpunk 2077 0−1 0−1
Far Cry 5 5−6
+66.7%
3−4
−66.7%
Far Cry New Dawn 7−8
+40%
5−6
−40%
Forza Horizon 4 2−3
+100%
1−2
−100%

This is how HD 6790 and R9 M270X compete in popular games:

900p resolution:

  • HD 6790 is 48.6% faster than R9 M270X

1080p resolution:

  • HD 6790 is 35.6% faster than R9 M270X

Advantages and disadvantages


Performance score 4.17 3.11
Recency 4 April 2011 21 March 2014
Maximum RAM amount 1 GB 4 GB
Chip lithography 40 nm 28 nm

The Radeon HD 6790 is our recommended choice as it beats the Radeon R9 M270X in performance tests.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

User ratings

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite graphics card.


AMD Radeon HD 6790
Radeon HD 6790
AMD Radeon R9 M270X
Radeon R9 M270X

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