Iris Graphics 540 vs Maxwell GPU Surface Book 940M GDDR5

Find out if it is worth upgrading your current GPU setup by comparing Iris Graphics 540 and Maxwell GPU Surface Book 940M GDDR5. 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 Iris Graphics 540 and Maxwell GPU Surface Book 940M GDDR5. 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.

Iris Graphics 540 and Maxwell GPU Surface Book 940M GDDR5 are Laptop Graphics Cards

Note: Iris Graphics 540 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 540 or Maxwell GPU Surface Book 940M GDDR5 here:

Main Specs

  Iris Graphics 540 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 540 has 63 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
  • Both cards are used in Laptops.
  • Iris Graphics 540 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 540.
  • Iris Graphics 540 is manufactured by 14 nm process technology, and Maxwell GPU Surface Book 940M GDDR5 - by 28 nm process technology.

Game benchmarks

high / 1080p 8−9 9−10
ultra / 1080p 5−6 5−6
QHD / 1440p 0−1 0−1
low / 720p 20−22 21−24
medium / 1080p 10−12 12−14
The average gaming FPS of Maxwell GPU Surface Book 940M GDDR5 in Assassin's Creed Odyssey is 9% more, than Iris Graphics 540.

Full Specs

  Iris Graphics 540 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 1050 MHz 993 MHz
Transistor count 189 million
Manufacturing process technology 14 nm 28 nm
Texture fill rate 50.40
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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