GeForce 940M vs Radeon 550X

When comparing GeForce 940M and Radeon 550X, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 940M and Radeon 550X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 940M is a Laptop Graphics Card

Note: GeForce 940M 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 GeForce 940M here:

Main Specs

  GeForce 940M Radeon 550X
Power consumption (TDP) 75 Watt 50 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
  Check Price
  • GeForce 940M has 50% more power consumption, than Radeon 550X.
  • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
  • GeForce 940M has 2 GB more memory, than Radeon 550X.
  • GeForce 940M is used in Laptops, and Radeon 550X - in Desktops.
  • GeForce 940M is build with Maxwell architecture, and Radeon 550X - with GCN 4.0.
  • Core clock speed of Radeon 550X is 10 MHz higher, than GeForce 940M.
  • GeForce 940M is manufactured by 28 nm process technology, and Radeon 550X - by 14 nm process technology.
  • Memory clock speed of Radeon 550X is 5000 MHz higher, than GeForce 940M.

Game benchmarks

high / 1080p 2−3 7−8
ultra / 1080p 1−2 4−5
QHD / 1440p 0−1 0−1
low / 720p 12−14 16−18
medium / 1080p 4−5 9−10
The average gaming FPS of Radeon 550X in Assassin's Creed Odyssey is 80% more, than GeForce 940M.

Full Specs

  GeForce 940M Radeon 550X
Architecture Maxwell GCN 4.0
Code name N16S-GT-S/B Lexa
Type Laptop Desktop
Release date 12 March 2015 27 March 2019
Pipelines 384 512
Core clock speed 1072 MHz 1082 MHz
Boost Clock 1176 MHz 1218 MHz
Transistor count 1,870 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 28.22 38.98
Floating-point performance 903.2 gflops
Length 145 mm
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 7000 MHz
Memory bandwidth 14.4 GB/s 112.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 101 Mh/s
Laptop size medium sized
Optimus +
GPU Boost 2.0
GameWorks +
  Check Price