Quadro K420 vs Radeon HD 5670

In this comparison between Quadro K420 and Radeon HD 5670 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 K420 will be the best choice, for others Radeon HD 5670 will be their preference. Study the comparison tables below and make your choice.

Main Specs

  Quadro K420 Radeon HD 5670
Power consumption (TDP) 41 Watt 64 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors None None
Memory type 128 Bit GDDR5
Maximum RAM amount 1 GB/2 GB 1 GB
Display Connectors 1x DVI, 1x DisplayPort 1x DVI, 1x HDMI, 1x VGA
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  • Radeon HD 5670 has 56% more power consumption, than Quadro K420.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Quadro K420 and Radeon HD 5670 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • Quadro K420 is build with Kepler architecture, and Radeon HD 5670 - with Terascale 2.
  • Core clock speed of Quadro K420 is 101 MHz higher, than Radeon HD 5670.
  • Quadro K420 is manufactured by 28 nm process technology, and Radeon HD 5670 - by 40 nm process technology.
  • Radeon HD 5670 is 8 mm longer, than Quadro K420.
  • Memory clock speed of Quadro K420 is 782 MHz higher, than Radeon HD 5670.

Game benchmarks

high / 1080p 0−1 0−1
ultra / 1080p 0−1
QHD / 1440p 0−1 0−1
low / 720p 9−10 1−2
medium / 1080p 1−2 0−1
The average gaming FPS of Quadro K420 in Assassin's Creed Odyssey is 800% more, than Radeon HD 5670.

Full Specs

  Quadro K420 Radeon HD 5670
Architecture Kepler Terascale 2
Code name GK107 Redwood
Type Workstation Desktop
Release date 22 July 2014 14 January 2010
Pipelines 192 400
Core clock speed 876 MHz 775 MHz
Transistor count 1,270 million 627 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 14.02 15.50
Floating-point performance 336.4 gflops 620.0 gflops
Length 160 mm 168 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 1000 MHz
Memory bandwidth 64 GB/s
DirectX 12 11.2 (11_0)
Shader Model 5 5.0
OpenGL 4.5 4.4
OpenCL 1.2 1.2
Vulkan + N/A
CUDA 3.0
Bitcoin / BTC (SHA256) 11 Mh/s
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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