GeForce 945M vs Iris Plus Graphics 645

Find out if it is worth upgrading your current GPU setup by comparing GeForce 945M 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 945M 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 945M and Iris Plus Graphics 645 are Laptop Graphics Cards

Note: GeForce 945M 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 945M or Iris Plus Graphics 645 here:

Main Specs

  GeForce 945M Iris Plus Graphics 645
Power consumption (TDP) 75 Watt 15 Watt
Interface MXM-B (3.0) PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3 DDR3/DDR4
Maximum RAM amount 4 GB
Display Connectors No outputs No outputs
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  • GeForce 945M has 400% more power consumption, than Iris Plus Graphics 645.
  • GeForce 945M is connected by MXM-B (3.0), and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
  • Both cards are used in Laptops.
  • GeForce 945M is build with Maxwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
  • Core clock speed of GeForce 945M is 628 MHz higher, than Iris Plus Graphics 645.
  • GeForce 945M is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

Game benchmarks

high / 1080p 10−11 4−5
ultra / 1080p 6−7 2−3
QHD / 1440p 1−2 0−1
low / 720p 24−27 12−14
medium / 1080p 12−14 5−6
The average gaming FPS of GeForce 945M in Assassin's Creed Odyssey is 116% more, than Iris Plus Graphics 645.

Full Specs

  GeForce 945M Iris Plus Graphics 645
Architecture Maxwell Gen. 9.5 Coffee Lake
Code name GM107 Kaby Lake GT3e
Type Laptop Laptop
Release date 12 March 2015 10 July 2019
Pipelines 512 48
Core clock speed 928 MHz 300 MHz
Boost Clock 1045 MHz 1150 MHz
Transistor count 1,870 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 40.80 50.40
Floating-point performance 953.9 gflops
Memory bus width 128 Bit
Memory clock speed 2000 MHz
Memory bandwidth 28.8 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
Bitcoin / BTC (SHA256) 107 Mh/s
Laptop size medium sized
Optimus +
Quick Sync +
GPU Boost 2.0
GameWorks +
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