GeForce GT 640M LE vs GeForce GTX 260M SLI

When choosing between GeForce GT 640M LE and GeForce GTX 260M SLI, 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 GeForce GTX 260M SLI.

GeForce GT 640M LE and GeForce GTX 260M SLI are Laptop Graphics Cards

Note: GeForce GT 640M LE and GeForce GTX 260M SLI 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 260M SLI here:

Main Specs

  GeForce GT 640M LE GeForce GTX 260M SLI
Power consumption (TDP) 20 Watt 150 Watt
Interface PCIe 2.0 x16
Memory type DDR3\DDR5 GDDR3
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs
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  • GeForce GTX 260M SLI has 650% more power consumption, than GeForce GT 640M LE.
  • GeForce GT 640M LE and GeForce GTX 260M SLI have maximum RAM of 2 GB.
  • Both cards are used in Laptops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 260M SLI - with G9x.
  • GeForce GT 640M LE is manufactured by 28 nm process technology, and GeForce GTX 260M SLI - by 55 nm process technology.
  • Memory clock speed of GeForce GT 640M LE is 850 MHz higher, than GeForce GTX 260M SLI.

Game benchmarks

high / 1080p 0−1 8−9
ultra / 1080p 5−6
QHD / 1440p 0−1 0−1
low / 720p 1−2 20−22
medium / 1080p 0−1 10−12
The average gaming FPS of GeForce GTX 260M SLI in Assassin's Creed Odyssey is 2000% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE GeForce GTX 260M SLI
Architecture Fermi / Kepler G9x
Code name N13P-LP NB9E-GTX
Type Laptop Laptop
Release date 22 March 2012 2 March 2009
Pipelines 384 224
Core clock speed 550 MHz
Transistor count 585 million 1508 Million
Manufacturing process technology 28 nm 55 nm
Floating-point performance 384.0 gflops
Memory bus width 128bit 256 Bit
Memory clock speed 1800 - 4000 MHz 950 MHz
Shared memory - -
DirectX 12 API DirectX 10, Shader 4.0
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
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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