GeForce 940M vs GeForce GTX 580M SLI

When choosing between GeForce 940M and GeForce GTX 580M 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 940M and GeForce GTX 580M SLI.

GeForce 940M and GeForce GTX 580M SLI are Laptop Graphics Cards

Note: GeForce 940M and GeForce GTX 580M 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 940M or GeForce GTX 580M SLI here:

Main Specs

  GeForce 940M GeForce GTX 580M SLI
Power consumption (TDP) 75 Watt 100 Watt
Interface PCIe 3.0 x8
Memory type DDR3 GDDR5
Maximum RAM amount 4 GB
Display Connectors No outputs
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  • GeForce GTX 580M SLI has 33% more power consumption, than GeForce 940M.
  • Both cards are used in Laptops.
  • GeForce 940M is build with Maxwell architecture, and GeForce GTX 580M SLI - with Fermi.
  • Core clock speed of GeForce 940M is 452 MHz higher, than GeForce GTX 580M SLI.
  • GeForce 940M is manufactured by 28 nm process technology, and GeForce GTX 580M SLI - by 40 nm process technology.
  • Memory clock speed of GeForce 940M is 500 MHz higher, than GeForce GTX 580M SLI.

Game benchmarks

high / 1080p 2−3 24−27
ultra / 1080p 1−2 14−16
QHD / 1440p 0−1 10−11
4K / 2160p 6−7
low / 720p 12−14 45−50
medium / 1080p 4−5 30−35
The average gaming FPS of GeForce GTX 580M SLI in Assassin's Creed Odyssey is 500% more, than GeForce 940M.

Full Specs

  GeForce 940M GeForce GTX 580M SLI
Architecture Maxwell Fermi
Code name N16S-GT-S/B N12E-GTX2
Type Laptop Laptop
Release date 12 March 2015 6 January 2011
Pipelines 384 768
Core clock speed 1072 MHz 620 MHz
Boost Clock 1176 MHz
Transistor count 1,870 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 28.22
Floating-point performance 903.2 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 2000 MHz 1500 MHz
Memory bandwidth 14.4 GB/s
Shared memory - -
DirectX 12 (11_0) DirectX 11, Shader 5.0
Shader Model 5.1
OpenGL 4.5
OpenCL 1.2
Vulkan 1.1.126
CUDA +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 101 Mh/s
Laptop size medium sized large
Optimus +
GPU Boost 2.0
GameWorks +
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