GeForce 825M vs Iris Plus Graphics 645

When choosing between GeForce 825M and Iris Plus Graphics 645, 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 825M and Iris Plus Graphics 645.

GeForce 825M and Iris Plus Graphics 645 are Laptop Graphics Cards

Note: GeForce 825M 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 825M or Iris Plus Graphics 645 here:

Main Specs

  GeForce 825M Iris Plus Graphics 645
Power consumption (TDP) 33 Watt 15 Watt
Interface PCIe 3.0 x8 PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3 DDR3/DDR4
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • GeForce 825M has 120% more power consumption, than Iris Plus Graphics 645.
  • GeForce 825M 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 825M is build with Kepler architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce 825M is 550 MHz higher, than Iris Plus Graphics 645.
  • GeForce 825M is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 0−1 4−5
ultra / 1080p 2−3
QHD / 1440p 0−1 0−1
low / 720p 2−3 12−14
medium / 1080p 0−1 5−6
The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 550% more, than GeForce 825M.

Full Specs

  GeForce 825M Iris Plus Graphics 645
Architecture Kepler Gen. 9.5 Coffee Lake
Code name GK208 Kaby Lake GT3e
Type Laptop Laptop
Release date 27 January 2014 10 July 2019
Pipelines 384 48
Core clock speed 850 MHz 300 MHz
Boost Clock 941 MHz 1150 MHz
Transistor count 915 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 30.11 50.40
Floating-point performance 722.7 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 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.1.126 1.1.103
CUDA +
Laptop size medium sized
Optimus +
Quick Sync +
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