Iris Plus Graphics 645 vs Iris Xe MAX Graphics

If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 645 and Iris Xe MAX Graphics, 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 Iris Plus Graphics 645 stacks up against Iris Xe MAX Graphics, check out specs charts below.

Iris Plus Graphics 645 and Iris Xe MAX Graphics are Laptop Graphics Cards

Note: Iris Plus Graphics 645 and Iris Xe MAX Graphics 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 Iris Plus Graphics 645 or Iris Xe MAX Graphics here:

Main Specs

  Iris Plus Graphics 645 Iris Xe MAX Graphics
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1
Memory type DDR3/DDR4 LPDDR4x
Maximum RAM amount 4 MB
Display Connectors No outputs
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  • Both cards are used in Laptops.
  • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Iris Xe MAX Graphics - with Gen. 12 Xe.
  • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Iris Xe MAX Graphics - by 10 nm process technology.

Game benchmarks

high / 1080p 4−5 35−40
ultra / 1080p 2−3 21−24
QHD / 1440p 0−1 16−18
4K / 2160p 10−11
low / 720p 12−14 60−65
medium / 1080p 5−6 40−45
The average gaming FPS of Iris Xe MAX Graphics in Assassin's Creed Odyssey is 583% more, than Iris Plus Graphics 645.

Full Specs

  Iris Plus Graphics 645 Iris Xe MAX Graphics
Architecture Gen. 9.5 Coffee Lake Gen. 12 Xe
Code name Kaby Lake GT3e iDG1LPDEV
Type Laptop Laptop
Release date 10 July 2019 31 October 2020
Pipelines 48 96
Core clock speed 300 MHz
Boost Clock 1150 MHz 1650 MHz
Manufacturing process technology 14 nm 10 nm
Texture fill rate 50.40
Memory bus width 128 Bit
Memory clock speed 4266 MHz
Shared memory + -
DirectX 12 (12_1) DirectX 12.1
Shader Model 6.4
OpenGL 4.6
OpenCL 2.1
Vulkan 1.1.103
Quick Sync +
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