Radeon Pro 555 vs Radeon R9 M390

If you are going to buy a new graphics card and are choosing between Radeon Pro 555 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 Pro 555 stacks up against Radeon R9 M390, check out specs charts below.

Radeon Pro 555 and Radeon R9 M390 are Laptop Graphics Cards

Note: Radeon Pro 555 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 Pro 555 or Radeon R9 M390 here:

Main Specs

  Radeon Pro 555 Radeon R9 M390
Power consumption (TDP) 75 Watt
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs
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  • Radeon Pro 555 and Radeon R9 M390 have maximum RAM of 2 GB.
  • Radeon Pro 555 is used in Mobile workstations, and Radeon R9 M390 - in Laptops.
  • Radeon Pro 555 is build with Polaris architecture, and Radeon R9 M390 - with GCN.
  • Radeon Pro 555 is manufactured by 14 nm process technology, and Radeon R9 M390 - by 28 nm process technology.

Game benchmarks

high / 1080p 16−18 18−20
ultra / 1080p 9−10 10−11
QHD / 1440p 4−5 5−6
4K / 2160p 4−5 4−5
low / 720p 30−35 35−40
medium / 1080p 20−22 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 14% more, than Radeon Pro 555.

Full Specs

  Radeon Pro 555 Radeon R9 M390
Architecture Polaris GCN
Code name Polaris 21 Pitcairn
Type Mobile workstation Laptop
Release date 5 June 2017 9 June 2015
Pipelines 768 1024
Core clock speed 855 MHz
Transistor count 3,000 million 5000 Million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 40.80
Floating-point performance 1,306 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 5080 MHz
Memory bandwidth 81.6 GB/s
Shared memory - -
DirectX 12 (12_0)
Shader Model 6.4
OpenGL 4.6 4.4
OpenCL 2.0 Not Listed
Vulkan 1.2.131
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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