GeForce GT 640M LE vs GeForce GTX 485M SLI

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M LE and GeForce GTX 485M SLI. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640M LE and GeForce GTX 485M SLI. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce GT 640M LE and GeForce GTX 485M SLI are Laptop Graphics Cards

Note: GeForce GT 640M LE and GeForce GTX 485M 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 485M SLI here:

Main Specs

  GeForce GT 640M LE GeForce GTX 485M SLI
Power consumption (TDP) 20 Watt 100 Watt
Interface PCIe 2.0 x16
Memory type DDR3\DDR5 GDDR5
Maximum RAM amount 2 GB 2x2 GB
Display Connectors No outputs
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  • GeForce GTX 485M SLI has 400% more power consumption, than GeForce GT 640M LE.
  • GeForce GT 640M LE and GeForce GTX 485M 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 485M SLI - with Fermi.
  • GeForce GT 640M LE is manufactured by 28 nm process technology, and GeForce GTX 485M SLI - by 40 nm process technology.
  • Memory clock speed of GeForce GT 640M LE is 300 MHz higher, than GeForce GTX 485M SLI.

Game benchmarks

high / 1080p 0−1 35−40
ultra / 1080p 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 1−2 60−65
medium / 1080p 0−1 40−45
The average gaming FPS of GeForce GTX 485M SLI in Assassin's Creed Odyssey is 6100% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE GeForce GTX 485M SLI
Architecture Fermi / Kepler Fermi
Code name N13P-LP N11E-GTX-A1
Type Laptop Laptop
Release date 22 March 2012 6 January 2011
Pipelines 384 768
Core clock speed 575 MHz
Transistor count 585 million
Manufacturing process technology 28 nm 40 nm
Floating-point performance 384.0 gflops
Memory bus width 128bit 256 Bit
Memory clock speed 1800 - 4000 MHz 1500 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
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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