GeForce GTX 765M SLI vs Radeon RX 640

When comparing GeForce GTX 765M SLI 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 GTX 765M SLI and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 765M SLI and Radeon RX 640 are Laptop Graphics Cards

Note: GeForce GTX 765M SLI 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 GTX 765M SLI or Radeon RX 640 here:

Main Specs

  GeForce GTX 765M SLI Radeon RX 640
Power consumption (TDP) 130 Watt 50 Watt
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type GDDR5 GDDR5
Maximum RAM amount 2x 2 GB 4 GB
Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 765M SLI has 160% more power consumption, than Radeon RX 640.
  • Radeon RX 640 has 2 GB more memory, than GeForce GTX 765M SLI.
  • Both cards are used in Laptops.
  • GeForce GTX 765M SLI is build with Kepler architecture, and Radeon RX 640 - with Polaris.
  • Core clock speed of Radeon RX 640 is 368 MHz higher, than GeForce GTX 765M SLI.
  • GeForce GTX 765M SLI is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 640 is 2000 MHz higher, than GeForce GTX 765M SLI.

Game benchmarks

high / 1080p 18−20 5−6
ultra / 1080p 10−12 3−4
QHD / 1440p 5−6 2−3
4K / 2160p 4−5
low / 720p 35−40 16−18
medium / 1080p 24−27 7−8
The average gaming FPS of GeForce GTX 765M SLI in Assassin's Creed Odyssey is 171% more, than Radeon RX 640.

Full Specs

  GeForce GTX 765M SLI Radeon RX 640
Architecture Kepler Polaris
Code name Polaris 12
Type Laptop Laptop
Release date 30 May 2013 12 August 2019
Pipelines 1536 640
Core clock speed 850 MHz 1218 MHz
Boost Clock 1218 MHz
Transistor count 2x 2540 Million 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 38.98
Memory bus width 2x 128 Bit 64 Bit
Memory clock speed 4000 MHz 6000 MHz
Memory bandwidth 112.0 GB/s
Shared memory - -
DirectX DirectX 11, Shader 5.0 12 (12_0)
Shader Model 6.4
OpenGL 4.6
OpenCL 2.0
Vulkan 1.2.131
CUDA +
FreeSync +
SLI options +
Laptop size large large
Optimus +
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