Maxwell GPU Surface Book 940M GDDR5 vs Quadro K620M

If you are going to buy a new graphics card and are choosing between Maxwell GPU Surface Book 940M GDDR5 and Quadro K620M, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Maxwell GPU Surface Book 940M GDDR5 stacks up against Quadro K620M, check out specs charts below.

Maxwell GPU Surface Book 940M GDDR5 and Quadro K620M are Laptop Graphics Cards

Note: Maxwell GPU Surface Book 940M GDDR5 and Quadro K620M 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 Maxwell GPU Surface Book 940M GDDR5 or Quadro K620M here:

Main Specs

  Maxwell GPU Surface Book 940M GDDR5 Quadro K620M
Power consumption (TDP) 30 Watt
Interface MXM-A (3.0)
Supplementary power connectors None
Memory type GDDR5 DDR3
Maximum RAM amount 1 GB 2 GB
Display Connectors No outputs
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  • Quadro K620M has 1 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
  • Maxwell GPU Surface Book 940M GDDR5 is used in Laptops, and Quadro K620M - in Mobile workstations.
  • Maxwell GPU Surface Book 940M GDDR5 and Quadro K620M are build with Maxwell architecture.
  • Core clock speed of Quadro K620M is 75 MHz higher, than Maxwell GPU Surface Book 940M GDDR5.
  • Maxwell GPU Surface Book 940M GDDR5 and Quadro K620M are manufactured by 28 nm process technology.
  • Memory clock speed of Maxwell GPU Surface Book 940M GDDR5 is 3012 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 9−10 3−4
ultra / 1080p 5−6 1−2
QHD / 1440p 0−1 0−1
low / 720p 21−24 14−16
medium / 1080p 12−14 5−6
The average gaming FPS of Maxwell GPU Surface Book 940M GDDR5 in Assassin's Creed Odyssey is 100% more, than Quadro K620M.

Full Specs

  Maxwell GPU Surface Book 940M GDDR5 Quadro K620M
Architecture Maxwell Maxwell
Code name Surface Book GM108
Type Laptop Mobile workstation
Release date 1 October 2015 1 March 2015
Pipelines 384 384
Core clock speed 954 MHz 1029 MHz
Boost Clock 993 MHz 1124 MHz
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98
Floating-point performance 863.2 gflops
Memory bus width 64 Bit 64 Bit
Memory clock speed 5012 MHz 2000 MHz
Memory bandwidth 14.4 GB/s
Shared memory - -
DirectX DirectX 12 (FL 11_0), Shader 5.0 12
Shader Model 5
OpenGL 4.5
OpenCL 1.2
Vulkan 1.1.126
CUDA + +
Bitcoin / BTC (SHA256) 92 Mh/s
Optimus + +
Display Port 1.2
nView Display Management +
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