Quadro K620M vs Quadro P400

When choosing between Quadro K620M and Quadro P400, 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 Quadro K620M and Quadro P400.

Quadro K620M is a Laptop Graphics Card

Note: Quadro K620M is only used in laptop graphics. It has 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 Quadro K620M here:

Main Specs

  Quadro K620M Quadro P400
Power consumption (TDP) 30 Watt 30 Watt
Interface MXM-A (3.0) PCIe 3.0 x16
Supplementary power connectors None None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 3x mini-DisplayPort
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  • Both graphics cards have the same power consumption of 30 Watt.
  • Quadro K620M is connected by MXM-A (3.0), and Quadro P400 uses PCIe 3.0 x16 interface.
  • Quadro K620M and Quadro P400 have maximum RAM of 2 GB.
  • Quadro K620M is used in Mobile workstations, and Quadro P400 - in Desktops.
  • Quadro K620M is build with Maxwell architecture, and Quadro P400 - with Pascal.
  • Core clock speed of Quadro P400 is 199 MHz higher, than Quadro K620M.
  • Quadro K620M is manufactured by 28 nm process technology, and Quadro P400 - by 14 nm process technology.
  • Memory clock speed of Quadro P400 is 2008 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 3−4 7−8
ultra / 1080p 1−2 4−5
QHD / 1440p 0−1 0−1
low / 720p 14−16 18−20
medium / 1080p 5−6 9−10
The average gaming FPS of Quadro P400 in Assassin's Creed Odyssey is 66% more, than Quadro K620M.

Full Specs

  Quadro K620M Quadro P400
Architecture Maxwell Pascal
Code name GM108 GP107
Type Mobile workstation Workstation
Release date 1 March 2015 7 February 2017
Pipelines 384 256
Core clock speed 1029 MHz 1228 MHz
Boost Clock 1124 MHz 1252 MHz
Transistor count 3,300 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98 20.03
Floating-point performance 863.2 gflops 679.9 gflops
Length 145 mm
Memory bus width 64 Bit 64 Bit
Memory clock speed 2000 MHz 4008 MHz
Memory bandwidth 14.4 GB/s 32.06 GB/s
Shared memory -
DirectX 12 12 (12_1)
Shader Model 5 6.4
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2.131
CUDA + 6.1
Bitcoin / BTC (SHA256) 92 Mh/s
Optimus +
Display Port 1.2
nView Display Management +
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