GeForce GT 640M LE vs GeForce GTX 775M

In this comparison between GeForce GT 640M LE and GeForce GTX 775M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 640M LE will be the best choice, for others GeForce GTX 775M will be their preference. Study the comparison tables below and make your choice.

GeForce GT 640M LE and GeForce GTX 775M are Laptop Graphics Cards

Note: GeForce GT 640M LE and GeForce GTX 775M 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 GeForce GTX 775M here:

Main Specs

  GeForce GT 640M LE GeForce GTX 775M
Power consumption (TDP) 20 Watt 100 Watt
Interface PCIe 2.0 x16
Memory type DDR3\DDR5 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs
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  • GeForce GTX 775M has 400% more power consumption, than GeForce GT 640M LE.
  • GeForce GTX 775M has 2 GB more memory, than GeForce GT 640M LE.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 775M - with Kepler.
  • GeForce GT 640M LE and GeForce GTX 775M are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 775M is 1800 MHz higher, than GeForce GT 640M LE.

Game benchmarks

high / 1080p 0−1 21−24
ultra / 1080p 12−14
QHD / 1440p 0−1 7−8
4K / 2160p 5−6
low / 720p 1−2 40−45
medium / 1080p 0−1 27−30
The average gaming FPS of GeForce GTX 775M in Assassin's Creed Odyssey is 4100% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE GeForce GTX 775M
Architecture Fermi / Kepler Kepler
Code name N13P-LP N13E-GTX-A2
Type Laptop Laptop
Release date 22 March 2012 24 September 2013
Pipelines 384 1344
Core clock speed 719 MHz
Transistor count 585 million 3540 Million
Manufacturing process technology 28 nm 28 nm
Floating-point performance 384.0 gflops
Memory bus width 128bit 256 Bit
Memory clock speed 1800 - 4000 MHz 3600 MHz
Shared memory - -
DirectX 12 API DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.5
OpenCL 1.1
Vulkan N/A
CUDA + +
CUDA cores Up to 384
Bus support PCI Express 2.0, PCI Express 3.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s
Laptop size medium sized large
Optimus + +
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