GeForce 945M vs Radeon RX 640

In this comparison between GeForce 945M and Radeon RX 640 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 945M will be the best choice, for others Radeon RX 640 will be their preference. Study the comparison tables below and make your choice.

GeForce 945M and Radeon RX 640 are Laptop Graphics Cards

Note: GeForce 945M and Radeon RX 640 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 945M or Radeon RX 640 here:

Main Specs

  GeForce 945M Radeon RX 640
Power consumption (TDP) 75 Watt 50 Watt
Interface MXM-B (3.0) PCIe 3.0 x8
Supplementary power connectors None 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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  • GeForce 945M has 50% more power consumption, than Radeon RX 640.
  • GeForce 945M is connected by MXM-B (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • GeForce 945M and Radeon RX 640 have maximum RAM of 4 GB.
  • Both cards are used in Laptops.
  • GeForce 945M is build with Maxwell architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 290 MHz higher, than GeForce 945M.
  • GeForce 945M is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 4000 MHz higher, than GeForce 945M.

Game benchmarks

high / 1080p 10−11 5−6
ultra / 1080p 6−7 3−4
QHD / 1440p 1−2 2−3
low / 720p 24−27 16−18
medium / 1080p 12−14 7−8
The average gaming FPS of GeForce 945M in Assassin's Creed Odyssey is 57% more, than Radeon RX 640.

Full Specs

  GeForce 945M Radeon RX 640
Architecture Maxwell Polaris
Code name GM107 Polaris 12
Type Laptop Laptop
Release date 12 March 2015 12 August 2019
Pipelines 512 640
Core clock speed 928 MHz 1218 MHz
Boost Clock 1045 MHz 1218 MHz
Transistor count 1,870 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 40.80 38.98
Floating-point performance 953.9 gflops
Memory bus width 128 Bit 64 Bit
Memory clock speed 2000 MHz 6000 MHz
Memory bandwidth 28.8 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 +
FreeSync +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 107 Mh/s
Laptop size medium sized large
Optimus +
GPU Boost 2.0
GameWorks +
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