GeForce GT 640M LE vs GeForce GTX 950

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M LE and GeForce GTX 950. 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 950. 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 is a Laptop Graphics Card

Note: GeForce GT 640M LE is only used in laptop graphics. It has 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 here:

Main Specs

  GeForce GT 640M LE GeForce GTX 950
Power consumption (TDP) 20 Watt 90 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors 1x 6-pins
Memory type DDR3\DDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 3x DisplayPort
Recommended system power (PSU) 350 Watt
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  • GeForce GTX 950 has 350% more power consumption, than GeForce GT 640M LE.
  • GeForce GT 640M LE is connected by PCIe 2.0 x16, and GeForce GTX 950 uses PCIe 3.0 x16 interface.
  • GeForce GT 640M LE and GeForce GTX 950 have maximum RAM of 2 GB.
  • GeForce GT 640M LE is used in Laptops, and GeForce GTX 950 - in Desktops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 950 - with Maxwell.
  • GeForce GT 640M LE and GeForce GTX 950 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 640M LE is 1794 MHz higher, than GeForce GTX 950.

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 950 in Assassin's Creed Odyssey is 6100% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE GeForce GTX 950
Architecture Fermi / Kepler Maxwell
Code name N13P-LP GM206
Type Laptop Desktop
Release date 22 March 2012 20 August 2015
Pipelines 384 768
Core clock speed 1024 MHz
Boost Clock 1188 MHz
Transistor count 585 million 2,940 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 49.2 billion/sec
Floating-point performance 384.0 gflops 1,825 gflops
Length 7.938" (20.2 cm)
Memory bus width 128bit 128 Bit
Memory clock speed 1800 - 4000 MHz 6.6 GB/s
Memory bandwidth 105.6 GB/s
Shared memory - -
G-SYNC support +
DirectX 12 API 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.5 4.5
OpenCL 1.1 1.2
Vulkan N/A 1.1.126
CUDA + +
CUDA cores Up to 384 768
Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support 4 displays
HDMI +
HDCP + +
Maximum VGA resolution Up to 2048x1536 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s 233 Mh/s
Laptop size medium sized
Optimus +
Ethereum / ETH (DaggerHashimoto) 9.97 Mh/s
GameStream +
GeForce ShadowPlay +
GPU Boost 2.0
GameWorks +
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