Quadro K620M vs Radeon HD 8870M

When choosing between Quadro K620M and Radeon HD 8870M, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Quadro K620M and Radeon HD 8870M.

Quadro K620M and Radeon HD 8870M are Laptop Graphics Cards

Note: Quadro K620M and Radeon HD 8870M 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 HD 8870M here:

Main Specs

  Quadro K620M Radeon HD 8870M
Power consumption (TDP) 30 Watt
Interface MXM-A (3.0) PCIe 3.0 x16
Supplementary power connectors None
Memory type DDR3 GDDR5, DDR3
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 HD 8870M uses PCIe 3.0 x16 interface.
  • Quadro K620M and Radeon HD 8870M have maximum RAM of 2 GB.
  • Quadro K620M is used in Mobile workstations, and Radeon HD 8870M - in Laptops.
  • Quadro K620M is build with Maxwell architecture, and Radeon HD 8870M - with GCN.
  • Core clock speed of Quadro K620M is 304 MHz higher, than Radeon HD 8870M.
  • Quadro K620M and Radeon HD 8870M are manufactured by 28 nm process technology.
  • Memory clock speed of Radeon HD 8870M is 2500 MHz higher, than Quadro K620M.

Game benchmarks

high / 1080p 3−4 7−8
ultra / 1080p 1−2 4−5
QHD / 1440p 0−1 0−1
low / 720p 14−16 18−20
medium / 1080p 5−6 9−10
The average gaming FPS of Radeon HD 8870M in Assassin's Creed Odyssey is 66% more, than Quadro K620M.

Full Specs

  Quadro K620M Radeon HD 8870M
Architecture Maxwell GCN
Code name GM108 Venus
Type Mobile workstation Laptop
Release date 1 March 2015 18 December 2012
Pipelines 384 640
Core clock speed 1029 MHz 725 MHz
Boost Clock 1124 MHz 775 MHz
Transistor count 1,500 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 17.98 31.00
Floating-point performance 863.2 gflops 992.0 gflops
Memory bus width 64 Bit 128 Bit
Memory clock speed 2000 MHz 4500 MHz
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 1.2.131
CUDA +
Bitcoin / BTC (SHA256) 92 Mh/s 107 Mh/s
Laptop size large
Optimus +
Display Port 1.2
nView Display Management +
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