GeForce 840M vs Radeon RX Vega 6

When comparing GeForce 840M and Radeon RX Vega 6, 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 Vega 6 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 Vega 6 are Laptop Graphics Cards

Note: GeForce 840M and Radeon RX Vega 6 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 Vega 6 here:

Main Specs

  GeForce 840M Radeon RX Vega 6
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8
Memory type DDR3
Maximum RAM amount 4 GB
Display Connectors No outputs
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  • Both cards are used in Laptops.
  • GeForce 840M is build with Maxwell architecture, and Radeon RX Vega 6 - with Vega.
  • GeForce 840M is manufactured by 28 nm process technology, and Radeon RX Vega 6 - by 14 nm process technology.

Game benchmarks

high / 1080p 1−2 3−4
ultra / 1080p 0−1 1−2
QHD / 1440p 0−1 0−1
low / 720p 12−14 14−16
medium / 1080p 3−4 5−6
The average gaming FPS of Radeon RX Vega 6 in Assassin's Creed Odyssey is 33% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon RX Vega 6
Architecture Maxwell Vega
Code name N15S-GT Vega Raven Ridge
Type Laptop Laptop
Release date 12 March 2014 7 January 2018
Pipelines 384 384
Core clock speed 1029 MHz
Boost Clock 1124 MHz 1100 MHz
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98
Floating-point performance 863.2 gflops
Memory bus width 64 Bit
Memory clock speed 2000 MHz
Memory bandwidth 16.02 GB/s
Shared memory - -
DirectX 12 (11_0) DirectX 12_1
Shader Model 5.1
OpenGL 4.5
OpenCL 1.2
Vulkan 1.1.126
CUDA +
Bus support PCI Express 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized
Optimus +
GPU Boost 2.0
GameWorks +
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