GeForce 940MX vs Iris Plus Graphics 655

In this comparison between GeForce 940MX and Iris Plus Graphics 655 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 940MX will be the best choice, for others Iris Plus Graphics 655 will be their preference. Study the comparison tables below and make your choice.

GeForce 940MX and Iris Plus Graphics 655 are Laptop Graphics Cards

Note: GeForce 940MX and Iris Plus Graphics 655 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 Iris Plus Graphics 655 here:

Main Specs

  GeForce 940MX Iris Plus Graphics 655
Power consumption (TDP) 23 Watt 15 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3, GDDR5 DDR3/DDR4
Maximum RAM amount 4 GB
Display Connectors No outputs No outputs
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  • GeForce 940MX has 53% more power consumption, than Iris Plus Graphics 655.
  • GeForce 940MX is connected by PCIe 3.0 x8, and Iris Plus Graphics 655 uses PCIe 3.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce 940MX is build with Maxwell architecture, and Iris Plus Graphics 655 - with Gen. 9.5 Kaby Lake.
  • Core clock speed of GeForce 940MX is 822 MHz higher, than Iris Plus Graphics 655.
  • GeForce 940MX is manufactured by 28 nm process technology, and Iris Plus Graphics 655 - by 14 nm process technology.

Game benchmarks

high / 1080p 7−8 12−14
ultra / 1080p 4−5 7−8
QHD / 1440p 0−1 2−3
low / 720p 16−18 27−30
medium / 1080p 8−9 16−18
The average gaming FPS of Iris Plus Graphics 655 in Assassin's Creed Odyssey is 77% more, than GeForce 940MX.

Full Specs

  GeForce 940MX Iris Plus Graphics 655
Architecture Maxwell Gen. 9.5 Kaby Lake
Code name N16S-GTR-B/S Kaby Lake GT3e
Type Laptop Laptop
Release date 10 March 2016 1 September 2017
Pipelines 384 48
Core clock speed 1122 MHz 300 MHz
Boost Clock 1242 MHz 1200 MHz
Transistor count 1,870 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 23.83 50.40
Floating-point performance 762.6 gflops
Memory bus width 64 Bit
Memory clock speed 4000 MHz
Memory bandwidth 40.1 GB/s
Shared memory - +
DirectX 12 (11_0) 12 (12_1)
Shader Model 5.1 6.4
OpenGL 4.5 4.6
OpenCL 1.2 2.1
Vulkan 1.1 1.1.103
CUDA +
Bus support PCI Express 3.0
Bitcoin / BTC (SHA256) 102 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
GPU Boost 2.0
GameWorks +
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