GeForce GT 650M vs Radeon RX 640

In this comparison between GeForce GT 650M 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 GT 650M will be the best choice, for others Radeon RX 640 will be their preference. Study the comparison tables below and make your choice.

GeForce GT 650M and Radeon RX 640 are Laptop Graphics Cards

Note: GeForce GT 650M 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 GT 650M or Radeon RX 640 here:

Main Specs

  GeForce GT 650M Radeon RX 640
Power consumption (TDP) 45 Watt 50 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 640 has 11% more power consumption, than GeForce GT 650M.
  • GeForce GT 650M is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • Radeon RX 640 has 2 GB more memory, than GeForce GT 650M.
  • Both cards are used in Laptops.
  • GeForce GT 650M is build with Kepler architecture, and Radeon RX 640 - with Polaris.
  • GeForce GT 650M is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 4200 MHz higher, than GeForce GT 650M.

Game benchmarks

high / 1080p 3−4 5−6
ultra / 1080p 1−2 3−4
QHD / 1440p 0−1 2−3
low / 720p 14−16 16−18
medium / 1080p 5−6 7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 33% more, than GeForce GT 650M.

Full Specs

  GeForce GT 650M Radeon RX 640
Architecture Kepler Polaris
Code name N13E-GE Polaris 12
Type Laptop Laptop
Release date 22 March 2012 12 August 2019
Pipelines 384 640
Core clock speed 1218 MHz
Boost Clock 900 MHz 1218 MHz
Transistor count 1,270 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 38.98
Floating-point performance 652.8 gflops
Memory bus width 128bit 64 Bit
Memory clock speed 1800 - 4000 MHz 6000 MHz
Memory bandwidth 112.0 GB/s
Shared memory - -
DirectX 12 API 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.1 2.0
Vulkan 1.1.126 1.2.131
CUDA +
FreeSync +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 21 Mh/s
Laptop size medium sized large
Optimus +
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