P104 100 vs Radeon R9 M390

In this comparison between P104 100 and Radeon R9 M390 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people P104 100 will be the best choice, for others Radeon R9 M390 will be their preference. Study the comparison tables below and make your choice.

Radeon R9 M390 is a Laptop Graphics Card

Note: Radeon R9 M390 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 M390 here:

Main Specs

  P104 100 Radeon R9 M390
Interface PCIe 3.0 x16
Supplementary power connectors 1x 8-pin
Memory type GDDR5X GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs
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  • P104 100 has 2 GB more memory, than Radeon R9 M390.
  • P104 100 is used in Desktops, and Radeon R9 M390 - in Laptops.
  • P104 100 is build with Pascal architecture, and Radeon R9 M390 - with GCN.
  • P104 100 is manufactured by 16 nm process technology, and Radeon R9 M390 - 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 P104 100 in Assassin's Creed Odyssey is 100% more, than Radeon R9 M390.

Full Specs

  P104 100 Radeon R9 M390
Architecture Pascal GCN
Code name GP104 Pitcairn
Type Desktop Laptop
Release date 12 December 2017 9 June 2015
Pipelines 1920 1024
Core clock speed 1607 MHz
Boost Clock 1733 MHz
Transistor count 7,200 million 5000 Million
Manufacturing process technology 16 nm 28 nm
Texture fill rate 208.0
Floating-point performance 8,873 gflops
Length 267 mm
Memory bus width 256 Bit 256 Bit
Memory clock speed 10008 MHz
Memory bandwidth 320.3 GB/s
Shared memory -
DirectX 12 (12_1)
Shader Model 6.4
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
Vulkan 1.2.131
CUDA 6.1
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 242 Mh/s
Laptop size large
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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