GeForce 940MX vs GeForce GT 650M SLI

When choosing between GeForce 940MX and GeForce GT 650M SLI, 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 940MX and GeForce GT 650M SLI.

GeForce 940MX and GeForce GT 650M SLI are Laptop Graphics Cards

Note: GeForce 940MX and GeForce GT 650M 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 940MX or GeForce GT 650M SLI here:

Main Specs

  GeForce 940MX GeForce GT 650M SLI
Power consumption (TDP) 23 Watt
Interface PCIe 3.0 x8
Supplementary power connectors None
Memory type DDR3, GDDR5 GDDR5
Maximum RAM amount 4 GB 2x2 GB
Display Connectors No outputs
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  • GeForce 940MX has 2 GB more memory, than GeForce GT 650M SLI.
  • Both cards are used in Laptops.
  • GeForce 940MX is build with Maxwell architecture, and GeForce GT 650M SLI - with Kepler.
  • Core clock speed of GeForce 940MX is 332 MHz higher, than GeForce GT 650M SLI.
  • GeForce 940MX and GeForce GT 650M SLI are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce 940MX and GeForce GT 650M SLI is 4000 MHz.

Game benchmarks

high / 1080p 7−8 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 16−18 24−27
medium / 1080p 8−9 14−16
The average gaming FPS of GeForce GT 650M SLI in Assassin's Creed Odyssey is 66% more, than GeForce 940MX.

Full Specs

  GeForce 940MX GeForce GT 650M SLI
Architecture Maxwell Kepler
Code name N16S-GTR-B/S N13E-GE
Type Laptop Laptop
Release date 10 March 2016 22 March 2012
Pipelines 384 768
Core clock speed 1122 MHz 790 MHz
Boost Clock 1242 MHz 835 MHz
Transistor count 1,870 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 23.83
Floating-point performance 762.6 gflops
Memory bus width 64 Bit 2x 128 Bit
Memory clock speed 4000 MHz 4000 MHz
Memory bandwidth 40.1 GB/s
Shared memory - -
DirectX 12 (11_0) DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.5
OpenCL 1.2
Vulkan 1.1
CUDA + +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 102 Mh/s
Laptop size medium sized medium sized
Optimus + +
GPU Boost 2.0
GameWorks +
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