Quadro K420 vs Radeon HD 7670A

When comparing Quadro K420 and Radeon HD 7670A, 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 7670A 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 7670A
Power consumption (TDP) 41 Watt 45 Watt
Interface PCIe 2.0 x16 MXM-A (3.0)
Supplementary power connectors None
Memory type 128 Bit GDDR5
Maximum RAM amount 1 GB/2 GB 1 GB
Display Connectors 1x DVI, 1x DisplayPort No outputs
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  • Radeon HD 7670A has 9% more power consumption, than Quadro K420.
  • Quadro K420 is connected by PCIe 2.0 x16, and Radeon HD 7670A uses MXM-A (3.0) interface.
  • Quadro K420 and Radeon HD 7670A have maximum RAM of 1 GB.
  • Both cards are used in Desktops.
  • Quadro K420 is build with Kepler architecture, and Radeon HD 7670A - with TeraScale 2.
  • Core clock speed of Quadro K420 is 276 MHz higher, than Radeon HD 7670A.
  • Quadro K420 is manufactured by 28 nm process technology, and Radeon HD 7670A - by 40 nm process technology.
  • Memory clock speed of Radeon HD 7670A is 2218 MHz higher, than Quadro K420.

Game benchmarks

high / 1080p 0−1 1−2
ultra / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 9−10 12−14
medium / 1080p 1−2 3−4
The average gaming FPS of Radeon HD 7670A in Assassin's Creed Odyssey is 60% more, than Quadro K420.

Full Specs

  Quadro K420 Radeon HD 7670A
Architecture Kepler TeraScale 2
Code name GK107 Turks
Type Workstation Desktop
Release date 22 July 2014 5 January 2012
Pipelines 192 480
Core clock speed 876 MHz 600 MHz
Transistor count 1,270 million 716 million
Manufacturing process technology 28 nm 40 nm
Texture fill rate 14.02 14.40
Floating-point performance 336.4 gflops 576.0 gflops
Length 160 mm
Memory bus width 128 Bit 128 Bit
Memory clock speed 1782 MHz 4000 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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