P106 100 vs Radeon R9 M390X

When choosing between P106 100 and Radeon R9 M390X, 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 P106 100 and Radeon R9 M390X.

Radeon R9 M390X is a Laptop Graphics Card

Note: Radeon R9 M390X 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 R9 M390X here:

Main Specs

  P106 100 Radeon R9 M390X
Power consumption (TDP) 120 Watt 100 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pin None
Memory type GDDR5 GDDR5
Maximum RAM amount 6 GB 4 GB
Display Connectors No outputs No outputs
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  • P106 100 has 20% more power consumption, than Radeon R9 M390X.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • P106 100 has 2 GB more memory, than Radeon R9 M390X.
  • P106 100 is used in Desktops, and Radeon R9 M390X - in Laptops.
  • P106 100 is build with Pascal architecture, and Radeon R9 M390X - with GCN 3.
  • Core clock speed of P106 100 is 783 MHz higher, than Radeon R9 M390X.
  • P106 100 is manufactured by 16 nm process technology, and Radeon R9 M390X - by 28 nm process technology.

Game benchmarks

high / 1080p 35−40 21−24
ultra / 1080p 21−24 12−14
QHD / 1440p 16−18 8−9
4K / 2160p 10−11 5−6
low / 720p 60−65 40−45
medium / 1080p 40−45 27−30
The average gaming FPS of P106 100 in Assassin's Creed Odyssey is 60% more, than Radeon R9 M390X.

Full Specs

  P106 100 Radeon R9 M390X
Architecture Pascal GCN 3
Code name GP106 Amethyst (XT) / Tonga
Type Desktop Laptop
Release date 19 June 2017 9 June 2015
Pipelines 1280 2048
Core clock speed 1506 MHz 723 MHz
Boost Clock 1709 MHz
Transistor count 4,400 million 5,000 million
Manufacturing process technology 16 nm 28 nm
Texture fill rate 136.7 92.54
Floating-point performance 4,375 gflops 2,961 gflops
Length 250 mm
Memory bus width 192 Bit 256 Bit
Memory clock speed 8008 MHz
Memory bandwidth 192.2 GB/s 160.0 GB/s
Shared memory -
DirectX 12 (12_1)
Shader Model 6.4 6.3
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
Vulkan 1.2.131 +
CUDA 6.1
FreeSync +
Bus support PCIe 3.0
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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