GeForce 940A vs Radeon R9 M390

When choosing between GeForce 940A 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 GeForce 940A 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

  GeForce 940A Radeon R9 M390
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8
Memory type DDR3 GDDR5
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs
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  • Radeon R9 M390 has 1 GB more memory, than GeForce 940A.
  • GeForce 940A is used in Desktops, and Radeon R9 M390 - in Laptops.
  • GeForce 940A is build with Maxwell architecture, and Radeon R9 M390 - with GCN.
  • GeForce 940A and Radeon R9 M390 are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 4−5 18−20
ultra / 1080p 2−3 10−11
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 14−16 35−40
medium / 1080p 5−6 21−24
The average gaming FPS of Radeon R9 M390 in Assassin's Creed Odyssey is 266% more, than GeForce 940A.

Full Specs

  GeForce 940A Radeon R9 M390
Architecture Maxwell GCN
Code name GM108 Pitcairn
Type Desktop Laptop
Release date 13 March 2015 9 June 2015
Pipelines 384 1024
Core clock speed 1029 MHz
Boost Clock 1124 MHz
Transistor count 5000 Million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98
Floating-point performance 863.2 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 2002 MHz
Memory bandwidth 16.02 GB/s
Shared memory -
DirectX 12 (11_0)
Shader Model 5.1
OpenGL 4.6 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126
CUDA 5.0
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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