GeForce GT 640 vs Radeon RX 560X

In this comparison between GeForce GT 640 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 GT 640 will be the best choice, for others Radeon RX 560X will be their preference. Study the comparison tables below and make your choice.

Main Specs

  GeForce GT 640 Radeon RX 560X
Power consumption (TDP) 65 Watt 75 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort 1x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon RX 560X has 15% more power consumption, than GeForce GT 640.
  • GeForce GT 640 is connected by PCIe 3.0 x16, and Radeon RX 560X uses PCIe 3.0 x8 interface.
  • Radeon RX 560X has 2 GB more memory, than GeForce GT 640.
  • Both cards are used in Desktops.
  • GeForce GT 640 is build with Kepler architecture, and Radeon RX 560X - with GCN 4.0.
  • Core clock speed of Radeon RX 560X is 273 MHz higher, than GeForce GT 640.
  • GeForce GT 640 is manufactured by 28 nm process technology, and Radeon RX 560X - by 14 nm process technology.
  • Radeon RX 560X is 25 mm longer, than GeForce GT 640.
  • Memory clock speed of Radeon RX 560X is 5218 MHz higher, than GeForce GT 640.

Game benchmarks

high / 1080p 2−3 18−20
ultra / 1080p 1−2 10−11
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 14−16 35−40
medium / 1080p 5−6 21−24
The average gaming FPS of Radeon RX 560X in Assassin's Creed Odyssey is 266% more, than GeForce GT 640.

Full Specs

  GeForce GT 640 Radeon RX 560X
Architecture Kepler GCN 4.0
Code name GK107 Polaris 21
Type Desktop Desktop
Release date 5 June 2012 11 April 2018
Pipelines 384 1024
Core clock speed 902 MHz 1175 MHz
Boost Clock 1275 MHz
Transistor count 1,270 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 28.86 81.60
Floating-point performance 692.7 gflops 2,611 gflops
Length 145 mm 170 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 7000 MHz
Memory bandwidth 28.51 GB/s 112.0 GB/s
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA 3.0
Bitcoin / BTC (SHA256) 24 Mh/s
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