Radeon HD 7970 vs Radeon R7 M270

If you are going to buy a new graphics card and are choosing between Radeon HD 7970 and Radeon R7 M270, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 7970 stacks up against Radeon R7 M270, check out specs charts below.

Radeon R7 M270 is a Laptop Graphics Card

Note: Radeon R7 M270 is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon R7 M270 here:

Main Specs

  Radeon HD 7970 Radeon R7 M270
Power consumption (TDP) 300 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors 1x 6-pin + 1x 8-pin
Memory type GDDR5 Not Listed
Maximum RAM amount 3 GB
Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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  • Radeon HD 7970 is connected by PCIe 3.0 x16, and Radeon R7 M270 uses PCIe 3.0 x8 interface.
  • Radeon HD 7970 is used in Desktops, and Radeon R7 M270 - in Laptops.
  • Radeon HD 7970 and Radeon R7 M270 are build with GCN architecture.
  • Radeon HD 7970 and Radeon R7 M270 are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 35−40 0−1
ultra / 1080p 21−24
QHD / 1440p 16−18 0−1
4K / 2160p 10−11
low / 720p 60−65 1−2
medium / 1080p 40−45 0−1
The average gaming FPS of Radeon HD 7970 in Assassin's Creed Odyssey is 6100% more, than Radeon R7 M270.

Full Specs

  Radeon HD 7970 Radeon R7 M270
Architecture GCN GCN
Code name Tahiti XT Opal XT / Mars
Type Desktop Laptop
Release date 22 December 2011 7 January 2014
Pipelines 2048 384
Core clock speed 825 MHz
Boost Clock 925 MHz
Transistor count 4,313 million 950 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 118.4 19.80
Floating-point performance 3,789 gflops 633.6 gflops
Length 274 mm
Memory bus width 384 Bit
Memory clock speed 1375 MHz
Memory bandwidth 264 GB/s 28.8 GB/s
Shared memory - -
Shader Model 5.1 5.1
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
FreeSync + +
Bus support PCIe 2.1 x16 PCIe 3.0
HDMI +
Bitcoin / BTC (SHA256) 485 Mh/s
Laptop size medium sized
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Design reference
CrossFire +
Ethereum / ETH (DaggerHashimoto) 20.71 Mh/s
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