GeForce GT 640M LE vs GeForce GTS 450

In this comparison between GeForce GT 640M LE and GeForce GTS 450 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 GTS 450 will be their preference. Study the comparison tables below and make your choice.

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 GTS 450
Power consumption (TDP) 20 Watt 106 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 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 GTS 450 has 430% 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 GTS 450.
  • GeForce GT 640M LE is used in Laptops, and GeForce GTS 450 - in Desktops.
  • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTS 450 - with Fermi.
  • GeForce GT 640M LE is manufactured by 28 nm process technology, and GeForce GTS 450 - by 40 nm process technology.
  • Memory clock speed of GeForce GTS 450 is 4 MHz higher, than GeForce GT 640M LE.

Game benchmarks

high / 1080p 0−1 3−4
ultra / 1080p 1−2
QHD / 1440p 0−1 0−1
low / 720p 1−2 14−16
medium / 1080p 0−1 5−6
The average gaming FPS of GeForce GTS 450 in Assassin's Creed Odyssey is 1400% more, than GeForce GT 640M LE.

Full Specs

  GeForce GT 640M LE GeForce GTS 450
Architecture Fermi / Kepler Fermi
Code name N13P-LP GF106
Type Laptop Desktop
Release date 22 March 2012 13 September 2010
Pipelines 384 192
Core clock speed 1566 MHz
Transistor count 585 million 1,170 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 25.1 billion/sec
Floating-point performance 384.0 gflops 601.3 gflops
Length 8.25" (210 mm) (21 cm)
Memory bus width 128bit 128 Bit
Memory clock speed 1800 - 4000 MHz 1804 (3608 data rate) MHz
Memory bandwidth 57.7 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 PCI-E 2.0 x 16
Height 4.376" (111 mm) (11.1 cm)
SLI options +
HDMI + +
HDCP +
Maximum VGA resolution Up to 2048x1536 2048x1536
Audio input for HDMI Internal
3D Blu-Ray +
Bitcoin / BTC (SHA256) 14 Mh/s 40 Mh/s
Laptop size medium sized
Optimus +
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