Quadro K620M vs Radeon R9 M280X

Find out if it is worth upgrading your current GPU setup by comparing Quadro K620M and Radeon R9 M280X. 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 R9 M280X. 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 and Radeon R9 M280X are Laptop Graphics Cards

Note: Quadro K620M and Radeon R9 M280X 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 R9 M280X here:

Main Specs

  Quadro K620M Radeon R9 M280X
Power consumption (TDP) 30 Watt
Interface MXM-A (3.0) PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3 Not Listed
Maximum RAM amount 2 GB
Display Connectors No outputs No outputs
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  • Quadro K620M is connected by MXM-A (3.0), and Radeon R9 M280X uses PCIe 3.0 x16 interface.
  • Quadro K620M is used in Mobile workstations, and Radeon R9 M280X - in Laptops.
  • Quadro K620M is build with Maxwell architecture, and Radeon R9 M280X - with GCN.
  • Core clock speed of Quadro K620M is 129 MHz higher, than Radeon R9 M280X.
  • Quadro K620M and Radeon R9 M280X are manufactured by 28 nm process technology.

Game benchmarks

high / 1080p 3−4 2−3
ultra / 1080p 1−2 1−2
QHD / 1440p 0−1 0−1
low / 720p 14−16 14−16
medium / 1080p 5−6 4−5
The average gaming FPS of Quadro K620M in Assassin's Creed Odyssey is 20% more, than Radeon R9 M280X.

Full Specs

  Quadro K620M Radeon R9 M280X
Architecture Maxwell GCN
Code name GM108 Saturn XT
Type Mobile workstation Laptop
Release date 1 March 2015 1 February 2015
Pipelines 384 896
Core clock speed 1029 MHz 900 MHz
Boost Clock 1124 MHz
Transistor count 2,080 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 61.60
Floating-point performance 863.2 gflops 1,792 gflops
Memory bus width 64 Bit
Memory clock speed 2000 MHz
Memory bandwidth 14.4 GB/s 96 GB/s
Shared memory - -
DirectX 12
Shader Model 5 6.3
OpenGL 4.5 4.4
OpenCL 1.2 Not Listed
Vulkan 1.1.126
CUDA +
FreeSync +
Bus support Not Listed
Bitcoin / BTC (SHA256) 92 Mh/s
Laptop size large
Optimus +
HD3D +
PowerTune +
DualGraphics +
ZeroCore +
Switchable graphics +
Mantle +
Display Port 1.2
nView Display Management +
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