Quadro K620M vs Radeon R9 A375

In this comparison between Quadro K620M and Radeon R9 A375 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Quadro K620M will be the best choice, for others Radeon R9 A375 will be their preference. Study the comparison tables below and make your choice.

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 R9 A375
Power consumption (TDP) 30 Watt
Interface MXM-A (3.0) PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs No outputs
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  • Quadro K620M is connected by MXM-A (3.0), and Radeon R9 A375 uses PCIe 3.0 x16 interface.
  • Quadro K620M and Radeon R9 A375 have maximum RAM of 2 GB.
  • Quadro K620M is used in Mobile workstations, and Radeon R9 A375 - in Desktops.
  • Quadro K620M is build with Maxwell architecture, and Radeon R9 A375 - with GCN 1.0.
  • Core clock speed of Quadro K620M is 129 MHz higher, than Radeon R9 A375.
  • Quadro K620M and Radeon R9 A375 are manufactured by 28 nm process technology.
  • Memory clock speed of Quadro K620M is 1996 MHz higher, than Radeon R9 A375.

Game benchmarks

high / 1080p 3−4 2−3
ultra / 1080p 1−2 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 12−14
medium / 1080p 5−6 4−5
The average gaming FPS of Quadro K620M in Assassin's Creed Odyssey is 20% more, than Radeon R9 A375.

Full Specs

  Quadro K620M Radeon R9 A375
Architecture Maxwell GCN 1.0
Code name GM108 Venus
Type Mobile workstation Desktop
Release date 1 March 2015 no data
Pipelines 384 640
Core clock speed 1029 MHz 900 MHz
Boost Clock 1124 MHz 925 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 37.00
Floating-point performance 863.2 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 4.5 GB/s
Memory bandwidth 14.4 GB/s 72 GB/s
Shared memory -
DirectX 12 12 (11_1)
Shader Model 5 5.1
OpenGL 4.5 4.6
OpenCL 1.2 1.2
Vulkan 1.1.126 1.2
CUDA +
Bitcoin / BTC (SHA256) 92 Mh/s
Optimus +
Display Port 1.2
nView Display Management +
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