GeForce 840M vs Radeon RX 550 mobile

When comparing GeForce 840M and Radeon RX 550 mobile, 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 840M and Radeon RX 550 mobile is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M and Radeon RX 550 mobile are Laptop Graphics Cards

Note: GeForce 840M and Radeon RX 550 mobile are only used in laptop graphics. They have 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 840M or Radeon RX 550 mobile here:

Main Specs

  GeForce 840M Radeon RX 550 mobile
Power consumption (TDP) 33 Watt 50 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs No outputs
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  • Radeon RX 550 mobile has 51% more power consumption, than GeForce 840M.
  • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
  • GeForce 840M and Radeon RX 550 mobile have maximum RAM of 4 GB.
  • Both cards are used in Laptops.
  • GeForce 840M is build with Maxwell architecture, and Radeon RX 550 mobile - with Polaris.
  • Core clock speed of Radeon RX 550 mobile is 258 MHz higher, than GeForce 840M.
  • GeForce 840M is manufactured by 28 nm process technology, and Radeon RX 550 mobile - by 14 nm process technology.
  • Memory clock speed of Radeon RX 550 mobile is 4000 MHz higher, than GeForce 840M.

Game benchmarks

high / 1080p 1−2 18−20
ultra / 1080p 0−1 10−12
QHD / 1440p 0−1 5−6
4K / 2160p 4−5
low / 720p 12−14 35−40
medium / 1080p 3−4 24−27
The average gaming FPS of Radeon RX 550 mobile in Assassin's Creed Odyssey is 350% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon RX 550 mobile
Architecture Maxwell Polaris
Code name N15S-GT Polaris 12
Type Laptop Laptop
Release date 12 March 2014 21 March 2017
Pipelines 384 640
Core clock speed 1029 MHz 1287 MHz
Boost Clock 1124 MHz 1476 MHz
Transistor count 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98 51.48
Floating-point performance 863.2 gflops 1,647 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 6000 MHz
Memory bandwidth 16.02 GB/s 96 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 +
FreeSync +
Bus support PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized large
Optimus +
GPU Boost 2.0
GameWorks +
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