GeForce 840M vs GeForce GTX 560M SLI

If you are going to buy a new graphics card and are choosing between GeForce 840M and GeForce GTX 560M SLI, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce 840M stacks up against GeForce GTX 560M SLI, check out specs charts below.

GeForce 840M and GeForce GTX 560M SLI are Laptop Graphics Cards

Note: GeForce 840M and GeForce GTX 560M 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 560M SLI here:

Main Specs

  GeForce 840M GeForce GTX 560M 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 560M 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 560M SLI - with Fermi.
  • Core clock speed of GeForce 840M is 254 MHz higher, than GeForce GTX 560M SLI.
  • GeForce 840M is manufactured by 28 nm process technology, and GeForce GTX 560M SLI - by 40 nm process technology.
  • Memory clock speed of GeForce 840M is 750 MHz higher, than GeForce GTX 560M SLI.

Game benchmarks

high / 1080p 1−2 16−18
ultra / 1080p 0−1 9−10
QHD / 1440p 0−1 4−5
4K / 2160p 4−5
low / 720p 12−14 30−35
medium / 1080p 3−4 20−22
The average gaming FPS of GeForce GTX 560M SLI in Assassin's Creed Odyssey is 283% more, than GeForce 840M.

Full Specs

  GeForce 840M GeForce GTX 560M SLI
Architecture Maxwell Fermi
Code name N15S-GT N12E-GS
Type Laptop Laptop
Release date 12 March 2014 6 January 2011
Pipelines 384 384
Core clock speed 1029 MHz 775 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 192 Bit
Memory clock speed 2000 MHz 1250 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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