GeForce GTX 750 vs Radeon RX 640

Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 750 and Radeon RX 640. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 750 and Radeon RX 640. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Radeon RX 640 is a Laptop Graphics Card

Note: Radeon RX 640 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 Radeon RX 640 here:

Main Specs

  GeForce GTX 750 Radeon RX 640
Power consumption (TDP) 55 Watt 50 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x8
Supplementary power connectors None None
Memory type GDDR5 GDDR5
Maximum RAM amount 1 GB 4 GB
Display Connectors 2x DVI, 1x mini-HDMI 1x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 750 has 10% more power consumption, than Radeon RX 640.
  • GeForce GTX 750 is connected by PCIe 3.0 x16, and Radeon RX 640 uses PCIe 3.0 x8 interface.
  • Radeon RX 640 has 3 GB more memory, than GeForce GTX 750.
  • GeForce GTX 750 is used in Desktops, and Radeon RX 640 - in Laptops.
  • GeForce GTX 750 is build with Maxwell architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 198 MHz higher, than GeForce GTX 750.
  • GeForce GTX 750 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 5995 MHz higher, than GeForce GTX 750.

Game benchmarks

high / 1080p 16−18 5−6
ultra / 1080p 10−11 3−4
QHD / 1440p 4−5 2−3
low / 720p 35−40 16−18
medium / 1080p 21−24 7−8
The average gaming FPS of GeForce GTX 750 in Assassin's Creed Odyssey is 157% more, than Radeon RX 640.

Full Specs

  GeForce GTX 750 Radeon RX 640
Architecture Maxwell Polaris
Code name GM107 Polaris 12
Type Desktop Laptop
Release date 18 February 2014 12 August 2019
Pipelines 512 640
Core clock speed 1020 MHz 1218 MHz
Boost Clock 1085 MHz 1218 MHz
Transistor count 1,870 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 34.72 38.98
Floating-point performance 1,111 gflops
Length 5.7" (14.5 cm)
Memory bus width 128 Bit 64 Bit
Memory clock speed 5.0 GB/s 6000 MHz
Memory bandwidth 80 GB/s 112.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 (12_0)
Shader Model 5.1 6.4
OpenGL 4.4 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
FreeSync +
CUDA cores 512
Bus support PCI Express 3.0
Height 4.376" (11.1 cm)
Multi monitor support 3 displays
HDMI +
HDCP +
Maximum VGA resolution 2048x1536
Audio input for HDMI Internal
3D Gaming +
3D Vision +
3D Vision Live +
Bitcoin / BTC (SHA256) 143 Mh/s
Laptop size large
Blu Ray 3D +
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