GeForce 840M vs GeForce GTX 580M SLI

When comparing GeForce 840M and GeForce GTX 580M SLI, 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 840M and GeForce GTX 580M SLI is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

GeForce 840M and GeForce GTX 580M SLI are Laptop Graphics Cards

Note: GeForce 840M 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 840M or GeForce GTX 580M SLI here:

Main Specs

  GeForce 840M GeForce GTX 580M SLI
Power consumption (TDP) 33 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 203% more power consumption, than GeForce 840M.
  • Both cards are used in Laptops.
  • GeForce 840M is build with Maxwell architecture, and GeForce GTX 580M SLI - with Fermi.
  • Core clock speed of GeForce 840M is 409 MHz higher, than GeForce GTX 580M SLI.
  • GeForce 840M is manufactured by 28 nm process technology, and GeForce GTX 580M SLI - by 40 nm process technology.
  • Memory clock speed of GeForce 840M is 500 MHz higher, than GeForce GTX 580M SLI.

Game benchmarks

high / 1080p 1−2 24−27
ultra / 1080p 0−1 14−16
QHD / 1440p 0−1 10−11
4K / 2160p 6−7
low / 720p 12−14 45−50
medium / 1080p 3−4 30−35
The average gaming FPS of GeForce GTX 580M SLI in Assassin's Creed Odyssey is 483% more, than GeForce 840M.

Full Specs

  GeForce 840M GeForce GTX 580M SLI
Architecture Maxwell Fermi
Code name N15S-GT N12E-GTX2
Type Laptop Laptop
Release date 12 March 2014 6 January 2011
Pipelines 384 768
Core clock speed 1029 MHz 620 MHz
Boost Clock 1124 MHz
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98
Floating-point performance 863.2 gflops
Memory bus width 64 Bit 256 Bit
Memory clock speed 2000 MHz 1500 MHz
Memory bandwidth 16.02 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 2.0, PCI Express 3.0
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized large
Optimus +
GPU Boost 2.0
GameWorks +
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