GeForce 920MX vs Iris Plus Graphics 640

When choosing between GeForce 920MX and Iris Plus Graphics 640, 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 920MX and Iris Plus Graphics 640.

GeForce 920MX and Iris Plus Graphics 640 are Laptop Graphics Cards

Note: GeForce 920MX and Iris Plus Graphics 640 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 920MX or Iris Plus Graphics 640 here:

Main Specs

  GeForce 920MX Iris Plus Graphics 640
Power consumption (TDP) 16 Watt 15 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3, GDDR5 DDR3L/LPDDR3/DDR4
Maximum RAM amount 2 GB 32 GB
Display Connectors No outputs No outputs
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  • GeForce 920MX has 6% more power consumption, than Iris Plus Graphics 640.
  • GeForce 920MX is connected by PCIe 3.0 x8, and Iris Plus Graphics 640 uses PCIe 3.0 x1 interface.
  • Iris Plus Graphics 640 has 30 GB more memory, than GeForce 920MX.
  • Both cards are used in Laptops.
  • GeForce 920MX is build with Maxwell architecture, and Iris Plus Graphics 640 - with Gen. 9.5 Kaby Lake.
  • Core clock speed of GeForce 920MX is 665 MHz higher, than Iris Plus Graphics 640.
  • GeForce 920MX is manufactured by 28 nm process technology, and Iris Plus Graphics 640 - by 14 nm process technology.

Game benchmarks

high / 1080p 2−3 6−7
ultra / 1080p 0−1 4−5
QHD / 1440p 0−1 0−1
low / 720p 12−14 16−18
medium / 1080p 3−4 8−9
The average gaming FPS of Iris Plus Graphics 640 in Assassin's Creed Odyssey is 66% more, than GeForce 920MX.

Full Specs

  GeForce 920MX Iris Plus Graphics 640
Architecture Maxwell Gen. 9.5 Kaby Lake
Code name N16V-GMR Kaby Lake GT3e
Type Laptop Laptop
Release date 25 March 2015 3 January 2017
Pipelines 256 48
Core clock speed 965 MHz 300 MHz
Boost Clock 993 MHz 1050 MHz
Transistor count 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 23.83 52.80
Floating-point performance 602.1 gflops
Memory bus width 64 Bit 64/128 Bit
Memory clock speed 1800 MHz
Memory bandwidth 14.4 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 1.1.126 1.1.103
CUDA +
Bus support PCI Express 3.0
Optimus +
Quick Sync +
GPU Boost 2.0
GameWorks +
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