GeForce 945M vs Iris Plus Graphics 640

In this comparison between GeForce 945M and Iris Plus Graphics 640 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 945M will be the best choice, for others Iris Plus Graphics 640 will be their preference. Study the comparison tables below and make your choice.

GeForce 945M and Iris Plus Graphics 640 are Laptop Graphics Cards

Note: GeForce 945M 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 945M or Iris Plus Graphics 640 here:

Main Specs

  GeForce 945M Iris Plus Graphics 640
Power consumption (TDP) 75 Watt 15 Watt
Interface MXM-B (3.0) PCIe 3.0 x1
Supplementary power connectors None
Memory type DDR3 DDR3L/LPDDR3/DDR4
Maximum RAM amount 4 GB 32 GB
Display Connectors No outputs No outputs
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  • GeForce 945M has 400% more power consumption, than Iris Plus Graphics 640.
  • GeForce 945M is connected by MXM-B (3.0), and Iris Plus Graphics 640 uses PCIe 3.0 x1 interface.
  • Iris Plus Graphics 640 has 28 GB more memory, than GeForce 945M.
  • Both cards are used in Laptops.
  • GeForce 945M is build with Maxwell architecture, and Iris Plus Graphics 640 - with Gen. 9.5 Kaby Lake.
  • Core clock speed of GeForce 945M is 628 MHz higher, than Iris Plus Graphics 640.
  • GeForce 945M is manufactured by 28 nm process technology, and Iris Plus Graphics 640 - by 14 nm process technology.

Game benchmarks

high / 1080p 10−11 6−7
ultra / 1080p 6−7 4−5
QHD / 1440p 1−2 0−1
low / 720p 24−27 16−18
medium / 1080p 12−14 8−9
The average gaming FPS of GeForce 945M in Assassin's Creed Odyssey is 44% more, than Iris Plus Graphics 640.

Full Specs

  GeForce 945M Iris Plus Graphics 640
Architecture Maxwell Gen. 9.5 Kaby Lake
Code name GM107 Kaby Lake GT3e
Type Laptop Laptop
Release date 12 March 2015 3 January 2017
Pipelines 512 48
Core clock speed 928 MHz 300 MHz
Boost Clock 1045 MHz 1050 MHz
Transistor count 1,870 million 189 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 40.80 52.80
Floating-point performance 953.9 gflops
Memory bus width 128 Bit 64/128 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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