Radeon HD 7970M vs Radeon Pro 555X

If you are going to buy a new graphics card and are choosing between Radeon HD 7970M and Radeon Pro 555X, 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 stacks up against Radeon Pro 555X, check out specs charts below.

Radeon HD 7970M and Radeon Pro 555X are Laptop Graphics Cards

Note: Radeon HD 7970M and Radeon Pro 555X 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 or Radeon Pro 555X here:

Main Specs

  Radeon HD 7970M Radeon Pro 555X
Power consumption (TDP) 100 Watt 75 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Radeon HD 7970M has 33% more power consumption, than Radeon Pro 555X.
  • Radeon HD 7970M is connected by MXM-B (3.0), and Radeon Pro 555X uses PCIe 3.0 x8 interface.
  • Radeon HD 7970M and Radeon Pro 555X have maximum RAM of 2 GB.
  • Radeon HD 7970M is used in Laptops, and Radeon Pro 555X - in Mobile workstations.
  • Radeon HD 7970M is build with GCN architecture, and Radeon Pro 555X - with Polaris.
  • Core clock speed of Radeon Pro 555X is 5 MHz higher, than Radeon HD 7970M.
  • Radeon HD 7970M is manufactured by 28 nm process technology, and Radeon Pro 555X - by 14 nm process technology.
  • Memory clock speed of Radeon Pro 555X is 280 MHz higher, than Radeon HD 7970M.

Game benchmarks

high / 1080p 18−20 16−18
ultra / 1080p 10−12 10−11
QHD / 1440p 5−6 4−5
4K / 2160p 4−5 4−5
low / 720p 35−40 30−35
medium / 1080p 21−24 21−24
The average gaming FPS of Radeon HD 7970M in Assassin's Creed Odyssey is 6% more, than Radeon Pro 555X.

Full Specs

  Radeon HD 7970M Radeon Pro 555X
Architecture GCN Polaris
Code name Wimbledon XT Polaris 21
Type Laptop Mobile workstation
Release date 1 May 2012 5 June 2017
Pipelines 1280 768
Core clock speed 850 MHz 855 MHz
Transistor count 2,800 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 68.00 43.54
Floating-point performance 2,176 gflops
Memory bus width 256 Bit 128 Bit
Memory clock speed 4800 MHz 5080 MHz
Memory bandwidth 153.6 GB/s 81.6 GB/s
Shared memory - -
DirectX 12 (11_1) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2.131 1.2.131
FreeSync +
Bitcoin / BTC (SHA256) 254 Mh/s
Laptop size large large
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