GeForce 920MX vs Iris Plus Graphics 645

Find out if it is worth upgrading your current GPU setup by comparing GeForce 920MX and Iris Plus Graphics 645. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce 920MX and Iris Plus Graphics 645. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

GeForce 920MX and Iris Plus Graphics 645 are Laptop Graphics Cards

Note: GeForce 920MX and Iris Plus Graphics 645 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 645 here:

Main Specs

  GeForce 920MX Iris Plus Graphics 645
Power consumption (TDP) 16 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 2 GB
Display Connectors No outputs No outputs
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  • GeForce 920MX has 6% more power consumption, than Iris Plus Graphics 645.
  • GeForce 920MX is connected by PCIe 3.0 x8, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce 920MX is build with Maxwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce 920MX is 665 MHz higher, than Iris Plus Graphics 645.
  • GeForce 920MX is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 2−3 4−5
ultra / 1080p 0−1 2−3
QHD / 1440p 0−1 0−1
low / 720p 12−14 12−14
medium / 1080p 3−4 5−6
The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 16% more, than GeForce 920MX.

Full Specs

  GeForce 920MX Iris Plus Graphics 645
Architecture Maxwell Gen. 9.5 Coffee Lake
Code name N16V-GMR Kaby Lake GT3e
Type Laptop Laptop
Release date 25 March 2015 10 July 2019
Pipelines 256 48
Core clock speed 965 MHz 300 MHz
Boost Clock 993 MHz 1150 MHz
Manufacturing process technology 28 nm 14 nm
Texture fill rate 23.83 50.40
Floating-point performance 602.1 gflops
Memory bus width 64 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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