Radeon HD 7970M Crossfire vs Radeon R9 M390

If you are going to buy a new graphics card and are choosing between Radeon HD 7970M Crossfire and Radeon R9 M390, 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 7970M Crossfire stacks up against Radeon R9 M390, check out specs charts below.

Radeon HD 7970M Crossfire and Radeon R9 M390 are Laptop Graphics Cards

Note: Radeon HD 7970M Crossfire and Radeon R9 M390 are only used in laptop graphics. They have 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 HD 7970M Crossfire or Radeon R9 M390 here:

Main Specs

  Radeon HD 7970M Crossfire Radeon R9 M390
Power consumption (TDP) 200 Watt
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB
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  • Both cards are used in Laptops.
  • Radeon HD 7970M Crossfire and Radeon R9 M390 are build with GCN architecture.
  • Radeon HD 7970M Crossfire and Radeon R9 M390 are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 35−40 18−20
ultra / 1080p 21−24 10−11
QHD / 1440p 16−18 5−6
4K / 2160p 10−11 4−5
low / 720p 60−65 35−40
medium / 1080p 40−45 21−24
The average gaming FPS of Radeon HD 7970M Crossfire in Assassin's Creed Odyssey is 100% more, than Radeon R9 M390.

Full Specs

  Radeon HD 7970M Crossfire Radeon R9 M390
Architecture GCN GCN
Code name Wimbledon XT Pitcairn
Type Laptop Laptop
Release date 1 May 2012 9 June 2015
Pipelines 2560 1024
Core clock speed 850 MHz
Transistor count 5000 Million
Manufacturing process technology 28 nm 28 nm
Memory bus width 2x 256 Bit 256 Bit
Memory clock speed 4800 MHz
Shared memory - -
DirectX DirectX 11.1, Shader 5.0
OpenGL 4.4
OpenCL Not Listed
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 242 Mh/s
Laptop size large large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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