GeForce GT 740A vs Radeon RX 640

When comparing GeForce GT 740A and Radeon RX 640, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 740A and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

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 GT 740A 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 GT 740A.
  • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
  • Radeon RX 640 has 2 GB more memory, than GeForce GT 740A.
  • GeForce GT 740A is used in Desktops, and Radeon RX 640 - in Laptops.
  • GeForce GT 740A is build with Kepler 2.0 architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 238 MHz higher, than GeForce GT 740A.
  • GeForce GT 740A 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 740A.

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 GT 740A.

Full Specs

  GeForce GT 740A Radeon RX 640
Architecture Kepler 2.0 Polaris
Code name GK208 Polaris 12
Type Desktop Laptop
Release date 26 August 2013 12 August 2019
Pipelines 384 640
Core clock speed 980 MHz 1218 MHz
Boost Clock 1218 MHz
Transistor count 915 million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 31.36 38.98
Floating-point performance 752.6 gflops
Memory bus width 64 Bit 64 Bit
Memory clock speed 1800 MHz 6000 MHz
Memory bandwidth 14.4 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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