GeForce GT 640M LE vs GeForce GTX 550 Ti

Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M LE and GeForce GTX 550 Ti. 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 550 Ti. 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 550 Ti
Power consumption (TDP) 20 Watt 116 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors One 6-pin
Memory type DDR3\DDR5 GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors No outputs 2x DVI, 1x mini-HDMI
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  • GeForce GTX 550 Ti has 480% more power consumption, than GeForce GT 640M LE.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • GeForce GT 640M LE has 1 GB more memory, than GeForce GTX 550 Ti.
  • GeForce GT 640M LE is used in Laptops, and GeForce GTX 550 Ti - in Desktops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 550 Ti - with Fermi.
  • GeForce GT 640M LE is manufactured by 28 nm process technology, and GeForce GTX 550 Ti - by 40 nm process technology.
  • Memory clock speed of GeForce GT 640M LE is 1796 MHz higher, than GeForce GTX 550 Ti.

Game benchmarks

high / 1080p 0−1 7−8
ultra / 1080p 4−5
QHD / 1440p 0−1 0−1
low / 720p 1−2 18−20
medium / 1080p 0−1 9−10
The average gaming FPS of GeForce GTX 550 Ti in Assassin's Creed Odyssey is 1800% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE GeForce GTX 550 Ti
Architecture Fermi / Kepler Fermi
Code name N13P-LP GF116
Type Laptop Desktop
Release date 22 March 2012 15 March 2011
Pipelines 384 192
Core clock speed 900 MHz
Transistor count 585 million 1,170 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 28.8 billion/sec
Floating-point performance 384.0 gflops 691.2 gflops
Length 8.25" (21 cm)
Memory bus width 128bit 192 Bit
Memory clock speed 1800 - 4000 MHz 4.1 GB/s
Memory bandwidth 98.4 GB/s
Shared memory -
DirectX 12 API 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.5 4.2
OpenCL 1.1 1.1
Vulkan N/A N/A
CUDA + +
CUDA cores Up to 384 192
Bus support PCI Express 2.0, PCI Express 3.0 16x PCI-E 2.0
Height 4.376" (11.1 cm)
SLI options +
Multi monitor support +
HDMI + +
HDCP +
Maximum VGA resolution Up to 2048x1536 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s 44 Mh/s
Laptop size medium sized
Optimus +
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