Iris Graphics 550 vs Maxwell GPU Surface Book 940M GDDR5

When choosing between Iris Graphics 550 and Maxwell GPU Surface Book 940M GDDR5, 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 Iris Graphics 550 and Maxwell GPU Surface Book 940M GDDR5.

Iris Graphics 550 and Maxwell GPU Surface Book 940M GDDR5 are Laptop Graphics Cards

Note: Iris Graphics 550 and Maxwell GPU Surface Book 940M GDDR5 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 Graphics 550 or Maxwell GPU Surface Book 940M GDDR5 here:

Main Specs

  Iris Graphics 550 Maxwell GPU Surface Book 940M GDDR5
Power consumption (TDP) 15 Watt
Interface PCIe 3.0 x1
Memory type eDRAM GDDR5
Maximum RAM amount 64 MB 1 GB
Display Connectors No outputs
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  • Iris Graphics 550 has 63 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
  • Both cards are used in Laptops.
  • Iris Graphics 550 is build with Gen. 9 Skylake architecture, and Maxwell GPU Surface Book 940M GDDR5 - with Maxwell.
  • Core clock speed of Maxwell GPU Surface Book 940M GDDR5 is 654 MHz higher, than Iris Graphics 550.
  • Iris Graphics 550 is manufactured by 14 nm process technology, and Maxwell GPU Surface Book 940M GDDR5 - by 28 nm process technology.

Game benchmarks

high / 1080p 9−10 9−10
ultra / 1080p 5−6 5−6
QHD / 1440p 0−1 0−1
low / 720p 21−24 21−24
medium / 1080p 10−12 12−14
Iris Graphics 550 and Maxwell GPU Surface Book 940M GDDR5 have the same average FPS in Assassin's Creed Odyssey.

Full Specs

  Iris Graphics 550 Maxwell GPU Surface Book 940M GDDR5
Architecture Gen. 9 Skylake Maxwell
Code name Skylake GT3e Surface Book
Type Laptop Laptop
Release date 1 September 2015 1 October 2015
Pipelines 48 384
Core clock speed 300 MHz 954 MHz
Boost Clock 1100 MHz 993 MHz
Transistor count 189 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 52.80
Memory bus width 64 Bit
Memory clock speed 5012 MHz
Shared memory + -
DirectX 12 (12_1) DirectX 12 (FL 11_0), Shader 5.0
Shader Model 6.4
OpenGL 4.6
OpenCL 2.1
Vulkan 1.1.97
CUDA +
Optimus +
Quick Sync +
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