GeForce 920A vs Radeon RX 640

When choosing between GeForce 920A and Radeon RX 640, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 920A and Radeon RX 640.

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 920A Radeon RX 640
Power consumption (TDP) 33 Watt 50 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3 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 51% more power consumption, than GeForce 920A.
  • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
  • Radeon RX 640 has 2 GB more memory, than GeForce 920A.
  • GeForce 920A is used in Desktops, and Radeon RX 640 - in Laptops.
  • GeForce 920A is build with Kepler 2.0 architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 264 MHz higher, than GeForce 920A.
  • GeForce 920A is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 3998 MHz higher, than GeForce 920A.

Game benchmarks

high / 1080p 0−1 5−6
ultra / 1080p 3−4
QHD / 1440p 0−1 2−3
low / 720p 1−2 16−18
medium / 1080p 0−1 7−8
The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 1600% more, than GeForce 920A.

Full Specs

  GeForce 920A Radeon RX 640
Architecture Kepler 2.0 Polaris
Code name GK208B Polaris 12
Type Desktop Laptop
Release date 13 March 2015 12 August 2019
Pipelines 384 640
Core clock speed 954 MHz 1218 MHz
Boost Clock 1218 MHz
Transistor count 915 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.53 38.98
Floating-point performance 441.6 gflops
Memory bus width 64 Bit 64 Bit
Memory clock speed 2002 MHz 6000 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 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA 3.5
FreeSync +
Laptop size large
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