Quadro K420 vs Radeon RX 460 mobile

In this comparison between Quadro K420 and Radeon RX 460 mobile 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 RX 460 mobile will be their preference. Study the comparison tables below and make your choice.

Radeon RX 460 mobile is a Laptop Graphics Card

Note: Radeon RX 460 mobile 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 Radeon RX 460 mobile here:

Main Specs

  Quadro K420 Radeon RX 460 mobile
Power consumption (TDP) 41 Watt 55 Watt
Interface PCIe 2.0 x16 MXM-B (3.0)
Supplementary power connectors None
Memory type 128 Bit GDDR5
Maximum RAM amount 1 GB/2 GB 4 GB
Display Connectors 1x DVI, 1x DisplayPort No outputs
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  • Radeon RX 460 mobile has 34% more power consumption, than Quadro K420.
  • Quadro K420 is connected by PCIe 2.0 x16, and Radeon RX 460 mobile uses MXM-B (3.0) interface.
  • Radeon RX 460 mobile has 3 GB more memory, than Quadro K420.
  • Quadro K420 is used in Desktops, and Radeon RX 460 mobile - in Laptops.
  • Quadro K420 is build with Kepler architecture, and Radeon RX 460 mobile - with Polaris.
  • Quadro K420 is manufactured by 28 nm process technology, and Radeon RX 460 mobile - by 14 nm process technology.
  • Memory clock speed of Radeon RX 460 mobile is 4218 MHz higher, than Quadro K420.

Game benchmarks

high / 1080p 0−1 16−18
ultra / 1080p 0−1 9−10
QHD / 1440p 0−1 3−4
low / 720p 9−10 30−35
medium / 1080p 1−2 21−24
The average gaming FPS of Radeon RX 460 mobile in Assassin's Creed Odyssey is 440% more, than Quadro K420.

Full Specs

  Quadro K420 Radeon RX 460 mobile
Architecture Kepler Polaris
Code name GK107 Polaris 11 / Baffin XT
Type Workstation Laptop
Release date 22 July 2014 8 August 2016
Pipelines 192 896
Core clock speed 876 MHz
Boost Clock 1180 MHz
Transistor count 1,270 million 3,000 million
Manufacturing process technology 28 nm 14 nm
Texture fill rate 14.02 66.08
Floating-point performance 336.4 gflops 2,115 gflops
Length 160 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 6000 MHz
Memory bandwidth 80 GB/s
Shared memory -
DirectX 12 12 (12_0)
Shader Model 5 6.4
OpenGL 4.5 4.6
OpenCL 1.2 2.0
Vulkan + 1.2.131
CUDA 3.0
FreeSync +
Bitcoin / BTC (SHA256) 11 Mh/s
Laptop size large
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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