Radeon Pro 455 vs Radeon R9 M390

When choosing between Radeon Pro 455 and Radeon R9 M390, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon Pro 455 and Radeon R9 M390.

Radeon Pro 455 and Radeon R9 M390 are Laptop Graphics Cards

Note: Radeon Pro 455 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 455 or Radeon R9 M390 here:

Main Specs

  Radeon Pro 455 Radeon R9 M390
Power consumption (TDP) 35 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 455 and Radeon R9 M390 have maximum RAM of 2 GB.
  • Radeon Pro 455 is used in Mobile workstations, and Radeon R9 M390 - in Laptops.
  • Radeon Pro 455 is build with Polaris architecture, and Radeon R9 M390 - with GCN.
  • Radeon Pro 455 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 455.

Full Specs

  Radeon Pro 455 Radeon R9 M390
Architecture Polaris GCN
Code name Polaris 11 Pitcairn
Type Mobile workstation Laptop
Release date 27 October 2016 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 41.04
Floating-point performance 1,313 gflops
Memory bus width 128 Bit 256 Bit
Memory clock speed 5000 MHz
Memory bandwidth 81.28 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) 163 Mh/s 242 Mh/s
Laptop size large large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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