Quadro K620 vs Radeon 520

When comparing Quadro K620 and Radeon 520, 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 K620 and Radeon 520 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Radeon 520 is a Laptop Graphics Card

Note: Radeon 520 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 Radeon 520 here:

Main Specs

  Quadro K620 Radeon 520
Power consumption (TDP) 41 Watt 50 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x8
Supplementary power connectors None None
Memory type 128 Bit DDR3, GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors 1x DVI, 1x DisplayPort 1x DVI, 1x HDMI, 1x VGA
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  • Radeon 520 has 21% more power consumption, than Quadro K620.
  • Quadro K620 is connected by PCIe 2.0 x16, and Radeon 520 uses PCIe 3.0 x8 interface.
  • Quadro K620 and Radeon 520 have maximum RAM of 2 GB.
  • Quadro K620 is used in Desktops, and Radeon 520 - in Laptops.
  • Quadro K620 is build with Maxwell architecture, and Radeon 520 - with GCN 1.0.
  • Core clock speed of Quadro K620 is 28 MHz higher, than Radeon 520.
  • Quadro K620 and Radeon 520 are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon 520 is 450 MHz higher, than Quadro K620.

Game benchmarks

high / 1080p 10−12 0−1
ultra / 1080p 6−7
QHD / 1440p 1−2 0−1
low / 720p 24−27 1−2
medium / 1080p 14−16 0−1
The average gaming FPS of Quadro K620 in Assassin's Creed Odyssey is 2400% more, than Radeon 520.

Full Specs

  Quadro K620 Radeon 520
Architecture Maxwell GCN 1.0
Code name GM107 Oland
Type Workstation Laptop
Release date 22 July 2014 21 March 2017
Pipelines 384 320
Core clock speed 1058 MHz 1030 MHz
Boost Clock 1124 MHz
Transistor count 1,870 million 1,040 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 26.98 20.60
Floating-point performance 863.2 gflops 659.2 gflops
Length 160 mm
Memory bus width 128 Bit 64 Bit
Memory clock speed 1800 MHz 2250 MHz
Memory bandwidth 16 GB/s
Shared memory -
DirectX 12 12.0
Shader Model 5 5.0
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan + +
CUDA 5.0
Bitcoin / BTC (SHA256) 104 Mh/s
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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