GeForce GT 640M vs GeForce GTX 650 Ti Boost

When choosing between GeForce GT 640M and GeForce GTX 650 Ti Boost, 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 and GeForce GTX 650 Ti Boost.

GeForce GT 640M is a Laptop Graphics Card

Note: GeForce GT 640M 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 here:

Main Specs

  GeForce GT 640M GeForce GTX 650 Ti Boost
Power consumption (TDP) 32 Watt 134 Watt
Interface PCIe 3.0 x16 PCIe 3.0 x16
Supplementary power connectors One 6-pin
Memory type DDR3\GDDR5 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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  • GeForce GTX 650 Ti Boost has 318% more power consumption, than GeForce GT 640M.
  • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
  • GeForce GT 640M and GeForce GTX 650 Ti Boost have maximum RAM of 2 GB.
  • GeForce GT 640M is used in Laptops, and GeForce GTX 650 Ti Boost - in Desktops.
  • GeForce GT 640M and GeForce GTX 650 Ti Boost are build with Kepler architecture.
  • GeForce GT 640M and GeForce GTX 650 Ti Boost are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GT 640M is 1794 MHz higher, than GeForce GTX 650 Ti Boost.

Game benchmarks

high / 1080p 0−1 16−18
ultra / 1080p 0−1 9−10
QHD / 1440p 0−1 3−4
low / 720p 10−12 30−35
medium / 1080p 2−3 21−24
The average gaming FPS of GeForce GTX 650 Ti Boost in Assassin's Creed Odyssey is 350% more, than GeForce GT 640M.

Full Specs

  GeForce GT 640M GeForce GTX 650 Ti Boost
Architecture Kepler Kepler
Code name N13P-GS GK106
Type Laptop Desktop
Release date 22 March 2012 26 March 2013
Pipelines 384 768
Core clock speed 980 MHz
Boost Clock 645 MHz 1033 MHz
Transistor count 1,270 million 2,540 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 62.7 billion/sec
Floating-point performance 480.0 gflops 1,585 gflops
Length 9.5" (24.1 cm)
Memory bus width 128bit 192 Bit
Memory clock speed 1800 - 4000 MHz 6.0 GB/s
Memory bandwidth 144.2 GB/s
Shared memory -
DirectX 12 API 12 (11_0)
Shader Model 5.1 5.1
OpenGL 4.5 4.3
OpenCL 1.1 1.2
Vulkan 1.1.126 1.1.126
CUDA + +
CUDA cores 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 + +
3D Gaming +
3D Vision +
3D Vision Live +
Bitcoin / BTC (SHA256) 18 Mh/s 54 Mh/s
Laptop size medium sized
Optimus +
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