Quadro K620M vs Radeon RX 550X

Find out if it is worth upgrading your current GPU setup by comparing Quadro K620M and Radeon RX 550X. 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 Quadro K620M and Radeon RX 550X. 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.

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 Radeon RX 550X
Power consumption (TDP) 30 Watt 50 Watt
Interface MXM-A (3.0) PCIe 3.0 x8
Supplementary power connectors None None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
  Check Price
  • Radeon RX 550X has 66% more power consumption, than Quadro K620M.
  • Quadro K620M is connected by MXM-A (3.0), and Radeon RX 550X uses PCIe 3.0 x8 interface.
  • Radeon RX 550X has 2 GB more memory, than Quadro K620M.
  • Quadro K620M is used in Mobile workstations, and Radeon RX 550X - in Desktops.
  • Quadro K620M is build with Maxwell architecture, and Radeon RX 550X - with GCN 4.0.
  • Core clock speed of Radeon RX 550X is 71 MHz higher, than Quadro K620M.
  • Quadro K620M is manufactured by 28 nm process technology, and Radeon RX 550X - by 14 nm process technology.
  • Memory clock speed of Radeon RX 550X is 4000 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 3−4 10−11
ultra / 1080p 1−2 6−7
QHD / 1440p 0−1 0−1
low / 720p 14−16 21−24
medium / 1080p 5−6 12−14
The average gaming FPS of Radeon RX 550X in Assassin's Creed Odyssey is 116% more, than Quadro K620M.

Full Specs

  Quadro K620M Radeon RX 550X
Architecture Maxwell GCN 4.0
Code name GM108 Lexa
Type Mobile workstation Desktop
Release date 1 March 2015 16 December 2018
Pipelines 384 512
Core clock speed 1029 MHz 1100 MHz
Boost Clock 1124 MHz 1183 MHz
Transistor count 2,200 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98 37.86
Floating-point performance 863.2 gflops 1,211 gflops
Length 145 mm
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 6000 MHz
Memory bandwidth 14.4 GB/s 96 GB/s
Shared memory -
DirectX 12 12 (12_0)
Shader Model 5 6.4
OpenGL 4.5 4.6
OpenCL 1.2 2.0
Vulkan 1.1.126 1.2.131
CUDA +
Bitcoin / BTC (SHA256) 92 Mh/s
Optimus +
Display Port 1.2
nView Display Management +
  Check Price