Quadro K420 vs Radeon HD 5870

When comparing Quadro K420 and Radeon HD 5870, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Quadro K420 and Radeon HD 5870 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.

Main Specs

  Quadro K420 Radeon HD 5870
Power consumption (TDP) 41 Watt 188 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors None 2x 6-pin
Memory type 128 Bit GDDR5
Maximum RAM amount 1 GB/2 GB 1 GB
Display Connectors 1x DVI, 1x DisplayPort 2x DVI, 1x HDMI, 1x DisplayPort
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  • Radeon HD 5870 has 358% 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 5870 have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • Quadro K420 is build with Kepler architecture, and Radeon HD 5870 - with TeraScale 2.
  • Core clock speed of Quadro K420 is 26 MHz higher, than Radeon HD 5870.
  • Quadro K420 is manufactured by 28 nm process technology, and Radeon HD 5870 - by 40 nm process technology.
  • Radeon HD 5870 is 122 mm longer, than Quadro K420.
  • Memory clock speed of Radeon HD 5870 is 3018 MHz higher, than Quadro K420.

Game benchmarks

high / 1080p 0−1 10−12
ultra / 1080p 0−1 6−7
QHD / 1440p 0−1 1−2
low / 720p 9−10 24−27
medium / 1080p 1−2 14−16
The average gaming FPS of Radeon HD 5870 in Assassin's Creed Odyssey is 300% more, than Quadro K420.

Full Specs

  Quadro K420 Radeon HD 5870
Architecture Kepler TeraScale 2
Code name GK107 Cypress
Type Workstation Desktop
Release date 22 July 2014 23 September 2009
Pipelines 192 1600
Core clock speed 876 MHz 850 MHz
Transistor count 1,270 million 2,154 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 14.02 68.00
Floating-point performance 336.4 gflops 2,720.0 gflops
Length 160 mm 282 mm
Memory bus width 128 Bit 256 Bit
Memory clock speed 1782 MHz 4800 MHz
Memory bandwidth 153.6 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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