GeForce 840M vs Radeon RX 560X

In this comparison between GeForce 840M and Radeon RX 560X you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 840M will be the best choice, for others Radeon RX 560X will be their preference. Study the comparison tables below and make your choice.

GeForce 840M is a Laptop Graphics Card

Note: GeForce 840M 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 840M here:

Main Specs

  GeForce 840M Radeon RX 560X
Power consumption (TDP) 33 Watt 75 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 560X has 127% 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 560X have maximum RAM of 4 GB.
  • GeForce 840M is used in Laptops, and Radeon RX 560X - in Desktops.
  • GeForce 840M is build with Maxwell architecture, and Radeon RX 560X - with GCN 4.0.
  • Core clock speed of Radeon RX 560X is 146 MHz higher, than GeForce 840M.
  • GeForce 840M is manufactured by 28 nm process technology, and Radeon RX 560X - by 14 nm process technology.
  • Memory clock speed of Radeon RX 560X is 5000 MHz higher, than GeForce 840M.

Game benchmarks

high / 1080p 1−2 18−20
ultra / 1080p 0−1 10−11
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 12−14 35−40
medium / 1080p 3−4 21−24
The average gaming FPS of Radeon RX 560X in Assassin's Creed Odyssey is 333% more, than GeForce 840M.

Full Specs

  GeForce 840M Radeon RX 560X
Architecture Maxwell GCN 4.0
Code name N15S-GT Polaris 21
Type Laptop Desktop
Release date 12 March 2014 11 April 2018
Pipelines 384 1024
Core clock speed 1029 MHz 1175 MHz
Boost Clock 1124 MHz 1275 MHz
Transistor count 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98 81.60
Floating-point performance 863.2 gflops 2,611 gflops
Length 170 mm
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 7000 MHz
Memory bandwidth 16.02 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 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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