Quadro K620M vs Radeon R8 M445DX

When choosing between Quadro K620M and Radeon R8 M445DX, 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 Radeon R8 M445DX.

Quadro K620M and Radeon R8 M445DX are Laptop Graphics Cards

Note: Quadro K620M and Radeon R8 M445DX 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 Quadro K620M or Radeon R8 M445DX here:

Main Specs

  Quadro K620M Radeon R8 M445DX
Power consumption (TDP) 30 Watt
Interface MXM-A (3.0) IGP
Supplementary power connectors None
Memory type DDR3 DDR4/DDR3
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • Quadro K620M is connected by MXM-A (3.0), and Radeon R8 M445DX uses IGP interface.
  • Quadro K620M is used in Mobile workstations, and Radeon R8 M445DX - in Laptops.
  • Quadro K620M is build with Maxwell architecture, and Radeon R8 M445DX - with GCN.
  • Core clock speed of Quadro K620M is 309 MHz higher, than Radeon R8 M445DX.
  • Quadro K620M and Radeon R8 M445DX are manufactured by 28 nm process technology.
  • Memory clock speed of Quadro K620M is 1067 MHz higher, than Radeon R8 M445DX.

Game benchmarks

high / 1080p 3−4 0−1
ultra / 1080p 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 1−2
medium / 1080p 5−6 0−1
The average gaming FPS of Quadro K620M in Assassin's Creed Odyssey is 1400% more, than Radeon R8 M445DX.

Full Specs

  Quadro K620M Radeon R8 M445DX
Architecture Maxwell GCN
Code name GM108 Meso
Type Mobile workstation Laptop
Release date 1 March 2015 1 June 2016
Pipelines 384 704
Core clock speed 1029 MHz 720 / 1020 MHz
Boost Clock 1124 MHz 1021 MHz
Transistor count 1,550 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 20.42
Floating-point performance 863.2 gflops
Memory bus width 64 Bit 128 + 64 Bit
Memory clock speed 2000 MHz 933 / 1000 MHz
Memory bandwidth 14.4 GB/s
Shared memory - -
DirectX 12 12 (12_0)
Shader Model 5 6.0
OpenGL 4.5 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size medium sized
Optimus +
Display Port 1.2
nView Display Management +
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