GeForce GT 640M vs Radeon R8 M365DX

When comparing GeForce GT 640M and Radeon R8 M365DX, 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 640M and Radeon R8 M365DX is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GT 640M and Radeon R8 M365DX are Laptop Graphics Cards

Note: GeForce GT 640M and Radeon R8 M365DX 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 GT 640M or Radeon R8 M365DX here:

Main Specs

  GeForce GT 640M Radeon R8 M365DX
Power consumption (TDP) 32 Watt
Interface PCIe 3.0 x16 IGP
Memory type DDR3\GDDR5 DDR3
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon R8 M365DX uses IGP interface.
  • Both cards are used in Laptops.
  • GeForce GT 640M is build with Kepler architecture, and Radeon R8 M365DX - with GCN.
  • GeForce GT 640M and Radeon R8 M365DX are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 640M is 1000 MHz higher, than Radeon R8 M365DX.

Game benchmarks

high / 1080p 0−1 0−1
ultra / 1080p 0−1
QHD / 1440p 0−1 0−1
low / 720p 10−12 1−2
medium / 1080p 2−3 0−1
The average gaming FPS of GeForce GT 640M in Assassin's Creed Odyssey is 1000% more, than Radeon R8 M365DX.

Full Specs

  GeForce GT 640M Radeon R8 M365DX
Architecture Kepler GCN
Code name N13P-GS Meso
Type Laptop Laptop
Release date 22 March 2012 3 June 2015
Pipelines 384 768
Core clock speed 720 / 1125 MHz
Boost Clock 645 MHz 1125 MHz
Transistor count 1,270 million 1,550 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 27.00
Floating-point performance 480.0 gflops
Memory bus width 128bit 128 + 64 Bit
Memory clock speed 1800 - 4000 MHz 800 / 1000 MHz
Shared memory - -
DirectX 12 API 12 (12_0)
Shader Model 5.1 6.0
OpenGL 4.5 4.6
OpenCL 1.1 2.0
Vulkan 1.1.126 1.2.131
CUDA +
CUDA cores 384
Bus support PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 18 Mh/s
Laptop size medium sized medium sized
Optimus +
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