Quadro P400 vs Radeon R9 M390

When choosing between Quadro P400 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 Quadro P400 and Radeon R9 M390.

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

  Quadro P400 Radeon R9 M390
Power consumption (TDP) 30 Watt
Interface PCIe 3.0 x16
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 3x mini-DisplayPort
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  • Quadro P400 and Radeon R9 M390 have maximum RAM of 2 GB.
  • Quadro P400 is used in Desktops, and Radeon R9 M390 - in Laptops.
  • Quadro P400 is build with Pascal architecture, and Radeon R9 M390 - with GCN.
  • Quadro P400 is manufactured by 14 nm process technology, and Radeon R9 M390 - by 28 nm process technology.

Game benchmarks

high / 1080p 7−8 18−20
ultra / 1080p 4−5 10−11
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 18−20 35−40
medium / 1080p 9−10 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 120% more, than Quadro P400.

Full Specs

  Quadro P400 Radeon R9 M390
Architecture Pascal GCN
Code name GP107 Pitcairn
Type Workstation Laptop
Release date 7 February 2017 9 June 2015
Pipelines 256 1024
Core clock speed 1228 MHz
Boost Clock 1252 MHz
Transistor count 3,300 million 5000 Million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 20.03
Floating-point performance 679.9 gflops
Length 145 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 4008 MHz
Memory bandwidth 32.06 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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