GeForce 920M vs GeForce GT 640M LE

When choosing between GeForce 920M and GeForce GT 640M LE, 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 920M and GeForce GT 640M LE.

GeForce 920M and GeForce GT 640M LE are Laptop Graphics Cards

Note: GeForce 920M and GeForce GT 640M LE 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 920M or GeForce GT 640M LE here:

Main Specs

  GeForce 920M GeForce GT 640M LE
Power consumption (TDP) 33 Watt 20 Watt
Interface PCIe 3.0 x8 PCIe 2.0 x16
Memory type DDR3 DDR3\DDR5
Maximum RAM amount 4 GB 2 GB
Display Connectors No outputs No outputs
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  • GeForce 920M has 65% more power consumption, than GeForce GT 640M LE.
  • GeForce 920M is connected by PCIe 3.0 x8, and GeForce GT 640M LE uses PCIe 2.0 x16 interface.
  • GeForce 920M has 2 GB more memory, than GeForce GT 640M LE.
  • Both cards are used in Laptops.
  • GeForce 920M is build with Kepler architecture, and GeForce GT 640M LE - with Fermi / Kepler.
  • GeForce 920M and GeForce GT 640M LE are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 920M and GeForce GT 640M LE is 1800 MHz.

Game benchmarks

high / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 1−2 1−2
medium / 1080p 0−1 0−1
GeForce 920M and GeForce GT 640M LE have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  GeForce 920M GeForce GT 640M LE
Architecture Kepler Fermi / Kepler
Code name N16V-GM-S N13P-LP
Type Laptop Laptop
Release date 27 January 2015 22 March 2012
Pipelines 384 384
Core clock speed 954 MHz
Transistor count 915 million 585 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 30.53
Floating-point performance 297.6 gflops 384.0 gflops
Memory bus width 64 Bit 128bit
Memory clock speed 1800 MHz 1800 - 4000 MHz
Memory bandwidth 14.4 GB/s
Shared memory - -
DirectX 12 (11_0) 12 API
Shader Model 5.1 5.1
OpenGL 4.5 4.5
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA + +
CUDA cores Up to 384
Bus support PCI Express 3.0 PCI Express 2.0, PCI Express 3.0
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 40 Mh/s 14 Mh/s
Laptop size medium sized
Optimus + +
GPU Boost 2.0
GameWorks +
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