Quadro K620M vs Radeon HD 6950

In this comparison between Quadro K620M and Radeon HD 6950 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 HD 6950 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 HD 6950
Power consumption (TDP) 30 Watt 500 Watt
Interface MXM-A (3.0) PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type DDR3 GDDR5
Maximum RAM amount 2 GB 2 GB
Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6950 has 1566% more power consumption, than Quadro K620M.
  • Quadro K620M is connected by MXM-A (3.0), and Radeon HD 6950 uses PCIe 2.0 x16 interface.
  • Quadro K620M and Radeon HD 6950 have maximum RAM of 2 GB.
  • Quadro K620M is used in Mobile workstations, and Radeon HD 6950 - in Desktops.
  • Quadro K620M is build with Maxwell architecture, and Radeon HD 6950 - with TeraScale 3.
  • Quadro K620M is manufactured by 28 nm process technology, and Radeon HD 6950 - by 40 nm process technology.
  • Memory clock speed of Quadro K620M is 750 MHz higher, than Radeon HD 6950.

Game benchmarks

high / 1080p 3−4 14−16
ultra / 1080p 1−2 8−9
QHD / 1440p 0−1 3−4
low / 720p 14−16 27−30
medium / 1080p 5−6 16−18
The average gaming FPS of Radeon HD 6950 in Assassin's Creed Odyssey is 183% more, than Quadro K620M.

Full Specs

  Quadro K620M Radeon HD 6950
Architecture Maxwell TeraScale 3
Code name GM108 Cayman
Type Mobile workstation Desktop
Release date 1 March 2015 14 December 2010
Pipelines 384 1408
Core clock speed 1029 MHz
Boost Clock 1124 MHz 800 MHz
Transistor count 2,640 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 17.98 70.40
Floating-point performance 863.2 gflops 2,252.8 gflops
Length 267 mm
Memory bus width 64 Bit 256 Bit
Memory clock speed 2000 MHz 1250 MHz
Memory bandwidth 14.4 GB/s
Shared memory -
DirectX 12
Shader Model 5 5.0
OpenGL 4.5 4.4
OpenCL 1.2 1.2
Vulkan 1.1.126
CUDA +
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 92 Mh/s 244 Mh/s
Optimus +
Eyefinity +
Design reference
CrossFire +
Display Port 1.2
nView Display Management +
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