Quadro K620M vs Radeon RX 540

When comparing Quadro K620M and Radeon RX 540, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Quadro K620M and Radeon RX 540 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Quadro K620M and Radeon RX 540 are Laptop Graphics Cards

Note: Quadro K620M and Radeon RX 540 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 RX 540 here:

Main Specs

  Quadro K620M Radeon RX 540
Power consumption (TDP) 30 Watt 65 Watt
Interface MXM-A (3.0) PCIe 3.0 x16
Supplementary power connectors None 1x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors No outputs
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  • Radeon RX 540 has 116% more power consumption, than Quadro K620M.
  • Quadro K620M is connected by MXM-A (3.0), and Radeon RX 540 uses PCIe 3.0 x16 interface.
  • Radeon RX 540 has 2 GB more memory, than Quadro K620M.
  • Quadro K620M is used in Mobile workstations, and Radeon RX 540 - in Laptops.
  • Quadro K620M is build with Maxwell architecture, and Radeon RX 540 - with Polaris.
  • Quadro K620M is manufactured by 28 nm process technology, and Radeon RX 540 - by 14 nm process technology.
  • Memory clock speed of Radeon RX 540 is 4000 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 3−4 14−16
ultra / 1080p 1−2 8−9
QHD / 1440p 0−1 3−4
low / 720p 14−16 30−33
medium / 1080p 5−6 18−20
The average gaming FPS of Radeon RX 540 in Assassin's Creed Odyssey is 200% more, than Quadro K620M.

Full Specs

  Quadro K620M Radeon RX 540
Architecture Maxwell Polaris
Code name GM108 Polaris 12
Type Mobile workstation Laptop
Release date 1 March 2015 21 March 2017
Pipelines 384 512
Core clock speed 1029 MHz
Boost Clock 1124 MHz 1219 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 17.98 39.01
Floating-point performance 863.2 gflops 1,248 gflops
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 12.0
Shader Model 5 5.0
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126
CUDA +
FreeSync +
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size large
Optimus +
Display Port 1.2
nView Display Management +
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