GeForce GT 640M LE vs Radeon R9 M280X

When choosing between GeForce GT 640M LE and Radeon R9 M280X, 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 GT 640M LE and Radeon R9 M280X.

GeForce GT 640M LE and Radeon R9 M280X are Laptop Graphics Cards

Note: GeForce GT 640M LE and Radeon R9 M280X 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 LE or Radeon R9 M280X here:

Main Specs

  GeForce GT 640M LE Radeon R9 M280X
Power consumption (TDP) 20 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Memory type DDR3\DDR5 Not Listed
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Radeon R9 M280X uses PCIe 3.0 x16 interface.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon R9 M280X - with GCN.
  • GeForce GT 640M LE and Radeon R9 M280X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 0−1 2−3
ultra / 1080p 1−2
QHD / 1440p 0−1 0−1
low / 720p 1−2 14−16
medium / 1080p 0−1 4−5
The average gaming FPS of Radeon R9 M280X in Assassin's Creed Odyssey is 1400% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE Radeon R9 M280X
Architecture Fermi / Kepler GCN
Code name N13P-LP Saturn XT
Type Laptop Laptop
Release date 22 March 2012 1 February 2015
Pipelines 384 896
Core clock speed 900 MHz
Transistor count 585 million 2,080 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 61.60
Floating-point performance 384.0 gflops 1,792 gflops
Memory bus width 128bit
Memory clock speed 1800 - 4000 MHz
Memory bandwidth 96 GB/s
Shared memory - -
DirectX 12 API
Shader Model 5.1 6.3
OpenGL 4.5 4.4
OpenCL 1.1 Not Listed
Vulkan N/A
CUDA +
FreeSync +
CUDA cores Up to 384
Bus support PCI Express 2.0, PCI Express 3.0 Not Listed
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s
Laptop size medium sized large
Optimus +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
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