GeForce 840M vs Radeon R9 M470X

When comparing GeForce 840M and Radeon R9 M470X, 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 R9 M470X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M and Radeon R9 M470X are Laptop Graphics Cards

Note: GeForce 840M and Radeon R9 M470X 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 R9 M470X here:

Main Specs

  GeForce 840M Radeon R9 M470X
Power consumption (TDP) 33 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x16
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs No outputs
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  • GeForce 840M is connected by PCIe 3.0 x8, and Radeon R9 M470X uses PCIe 3.0 x16 interface.
  • GeForce 840M and Radeon R9 M470X have maximum RAM of 4 GB.
  • Both cards are used in Laptops.
  • GeForce 840M is build with Maxwell architecture, and Radeon R9 M470X - with GCN 2.
  • Core clock speed of Radeon R9 M470X is 71 MHz higher, than GeForce 840M.
  • GeForce 840M and Radeon R9 M470X are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon R9 M470X is 4000 MHz higher, than GeForce 840M.

Game benchmarks

high / 1080p 1−2 16−18
ultra / 1080p 0−1 10−11
QHD / 1440p 0−1 4−5
low / 720p 12−14 35−40
medium / 1080p 3−4 21−24
The average gaming FPS of Radeon R9 M470X in Assassin's Creed Odyssey is 316% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon R9 M470X
Architecture Maxwell GCN 2
Code name N15S-GT Emerald
Type Laptop Laptop
Release date 12 March 2014 14 May 2016
Pipelines 384 896
Core clock speed 1029 MHz 1100 MHz
Boost Clock 1124 MHz 1100 MHz
Transistor count 2,080 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 61.60
Floating-point performance 863.2 gflops 1,971 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 6.3
OpenGL 4.5 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
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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