Quadro K620 vs Radeon HD 6770

In this comparison between Quadro K620 and Radeon HD 6770 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 K620 will be the best choice, for others Radeon HD 6770 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Quadro K620 Radeon HD 6770
Power consumption (TDP) 41 Watt 108 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors None 1x 6-pin
Memory type 128 Bit GDDR5
Maximum RAM amount 2 GB 1 GB
Display Connectors 1x DVI, 1x DisplayPort 2x DVI, 1x HDMI, 2x mini-DisplayPort
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  • Radeon HD 6770 has 163% more power consumption, than Quadro K620.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Quadro K620 has 1 GB more memory, than Radeon HD 6770.
  • Both cards are used in Desktops.
  • Quadro K620 is build with Maxwell architecture, and Radeon HD 6770 - with TeraScale 2.
  • Quadro K620 is manufactured by 28 nm process technology, and Radeon HD 6770 - by 40 nm process technology.
  • Radeon HD 6770 is 38 mm longer, than Quadro K620.
  • Memory clock speed of Quadro K620 is 750 MHz higher, than Radeon HD 6770.

Game benchmarks

high / 1080p 10−12 3−4
ultra / 1080p 6−7 1−2
QHD / 1440p 1−2 0−1
low / 720p 24−27 14−16
medium / 1080p 14−16 5−6
The average gaming FPS of Quadro K620 in Assassin's Creed Odyssey is 133% more, than Radeon HD 6770.

Full Specs

  Quadro K620 Radeon HD 6770
Architecture Maxwell TeraScale 2
Code name GM107 Juniper
Type Workstation Desktop
Release date 22 July 2014 21 January 2011
Pipelines 384 800
Core clock speed 1058 MHz
Boost Clock 1124 MHz 900 MHz
Transistor count 1,870 million 1,040 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 26.98 34.00
Floating-point performance 863.2 gflops 1,360.0 gflops
Length 160 mm 198 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1800 MHz 1050 MHz
Memory bandwidth 76.8 GB/s
DirectX 12
Shader Model 5 5.0
OpenGL 4.5 4.4
OpenCL 1.2 1.2
Vulkan +
CUDA 5.0
Bus support PCIe 2.0 x16
HDMI +
Bitcoin / BTC (SHA256) 104 Mh/s 118 Mh/s
Eyefinity +
Design reference
CrossFire +
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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