GeForce 940A vs GeForce GTX 580M

When comparing GeForce 940A and GeForce GTX 580M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce 940A and GeForce GTX 580M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce GTX 580M is a Laptop Graphics Card

Note: GeForce GTX 580M 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 GTX 580M here:

Main Specs

  GeForce 940A GeForce GTX 580M
Power consumption (TDP) 33 Watt 100 Watt
Interface PCIe 3.0 x8 MXM-B (3.0)
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 1 GB 2 MB
Display Connectors No outputs No outputs
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  • GeForce GTX 580M has 203% more power consumption, than GeForce 940A.
  • GeForce 940A is connected by PCIe 3.0 x8, and GeForce GTX 580M uses MXM-B (3.0) interface.
  • GeForce GTX 580M has 1 GB more memory, than GeForce 940A.
  • GeForce 940A is used in Desktops, and GeForce GTX 580M - in Laptops.
  • GeForce 940A is build with Maxwell architecture, and GeForce GTX 580M - with Fermi.
  • Core clock speed of GeForce 940A is 409 MHz higher, than GeForce GTX 580M.
  • GeForce 940A is manufactured by 28 nm process technology, and GeForce GTX 580M - by 40 nm process technology.
  • Memory clock speed of GeForce 940A is 502 MHz higher, than GeForce GTX 580M.

Game benchmarks

high / 1080p 4−5 10−12
ultra / 1080p 2−3 6−7
QHD / 1440p 0−1 1−2
low / 720p 14−16 24−27
medium / 1080p 5−6 14−16
The average gaming FPS of GeForce GTX 580M in Assassin's Creed Odyssey is 133% more, than GeForce 940A.

Full Specs

  GeForce 940A GeForce GTX 580M
Architecture Maxwell Fermi
Code name GM108 N12E-GTX2
Type Desktop Laptop
Release date 13 March 2015 28 June 2011
Pipelines 384 384
Core clock speed 1029 MHz 620 MHz
Boost Clock 1124 MHz
Transistor count 1,950 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 39.7 billion/sec
Floating-point performance 863.2 gflops 952.3 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 2002 MHz 1500 MHz
Memory bandwidth 16.02 GB/s 96.0 GB/s
Shared memory -
DirectX 12 (11_0) 12 API
Shader Model 5.1 5.1
OpenGL 4.6 4.5
OpenCL 1.2 1.1
Vulkan 1.1.126 N/A
CUDA 5.0 +
CUDA cores 384
Bus support PCI-E 2.0
SLI options +
3D Blu-Ray +
3D Gaming +
Bitcoin / BTC (SHA256) 40 Mh/s
Laptop size large
Optimus +
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