GeForce GT 640M LE vs Radeon HD 8870M

When choosing between GeForce GT 640M LE and Radeon HD 8870M, 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 HD 8870M.

GeForce GT 640M LE and Radeon HD 8870M are Laptop Graphics Cards

Note: GeForce GT 640M LE and Radeon HD 8870M 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 HD 8870M here:

Main Specs

  GeForce GT 640M LE Radeon HD 8870M
Power consumption (TDP) 20 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Memory type DDR3\DDR5 GDDR5, DDR3
Maximum RAM amount 2 GB 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 HD 8870M uses PCIe 3.0 x16 interface.
  • GeForce GT 640M LE and Radeon HD 8870M have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 8870M - with GCN.
  • GeForce GT 640M LE and Radeon HD 8870M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 8870M is 2700 MHz higher, than GeForce GT 640M LE.

Game benchmarks

high / 1080p 0−1 7−8
ultra / 1080p 4−5
QHD / 1440p 0−1 0−1
low / 720p 1−2 18−20
medium / 1080p 0−1 9−10
The average gaming FPS of Radeon HD 8870M in Assassin's Creed Odyssey is 1800% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE Radeon HD 8870M
Architecture Fermi / Kepler GCN
Code name N13P-LP Venus
Type Laptop Laptop
Release date 22 March 2012 18 December 2012
Pipelines 384 640
Core clock speed 725 MHz
Boost Clock 775 MHz
Transistor count 585 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 31.00
Floating-point performance 384.0 gflops 992.0 gflops
Memory bus width 128bit 128 Bit
Memory clock speed 1800 - 4000 MHz 4500 MHz
Memory bandwidth 72 GB/s
Shared memory - -
DirectX 12 API 12 (11_1)
Shader Model 5.1 5.1
OpenGL 4.5 4.6
OpenCL 1.1 1.2
Vulkan N/A 1.2.131
CUDA +
CUDA cores Up to 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) 14 Mh/s 107 Mh/s
Laptop size medium sized large
Optimus +
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