Quadro K620 vs Radeon R9 M375X

If you are going to buy a new graphics card and are choosing between Quadro K620 and Radeon R9 M375X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Quadro K620 stacks up against Radeon R9 M375X, check out specs charts below.

Main Specs

  Quadro K620 Radeon R9 M375X
Power consumption (TDP) 41 Watt
Interface PCIe 2.0 x16 PCIe 3.0 x16
Supplementary power connectors None
Memory type 128 Bit GDDR5
Maximum RAM amount 2 GB 4 GB
Display Connectors 1x DVI, 1x DisplayPort No outputs
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  • Quadro K620 is connected by PCIe 2.0 x16, and Radeon R9 M375X uses PCIe 3.0 x16 interface.
  • Radeon R9 M375X has 2 GB more memory, than Quadro K620.
  • Both cards are used in Desktops.
  • Quadro K620 is build with Maxwell architecture, and Radeon R9 M375X - with GCN 1.0.
  • Core clock speed of Quadro K620 is 133 MHz higher, than Radeon R9 M375X.
  • Quadro K620 and Radeon R9 M375X are manufactured by 28 nm process technology.
  • Memory clock speed of Quadro K620 is 675 MHz higher, than Radeon R9 M375X.

Game benchmarks

high / 1080p 10−12 9−10
ultra / 1080p 6−7 5−6
QHD / 1440p 1−2 0−1
low / 720p 24−27 21−24
medium / 1080p 14−16 12−14
The average gaming FPS of Quadro K620 in Assassin's Creed Odyssey is 16% more, than Radeon R9 M375X.

Full Specs

  Quadro K620 Radeon R9 M375X
Architecture Maxwell GCN 1.0
Code name GM107 Tropo
Type Workstation Desktop
Release date 22 July 2014 5 May 2015
Pipelines 384 640
Core clock speed 1058 MHz 925 MHz
Boost Clock 1124 MHz 1015 MHz
Transistor count 1,870 million 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 26.98 40.60
Floating-point performance 863.2 gflops 1,299 gflops
Length 160 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1800 MHz 1125 MHz
Memory bandwidth 72 GB/s
DirectX 12
Shader Model 5 5.1
OpenGL 4.5 4.4
OpenCL 1.2 Not Listed
Vulkan +
CUDA 5.0
FreeSync +
Bus support PCIe 3.0
Bitcoin / BTC (SHA256) 104 Mh/s
Eyefinity +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Compute units 10
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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