GeForce GTX 670MX vs Quadro K420

When choosing between GeForce GTX 670MX and Quadro K420, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 670MX and Quadro K420.

GeForce GTX 670MX is a Laptop Graphics Card

Note: GeForce GTX 670MX 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 GeForce GTX 670MX here:

Main Specs

  GeForce GTX 670MX Quadro K420
Power consumption (TDP) 75 Watt 41 Watt
Interface PCIe 3.0 x16 PCIe 2.0 x16
Supplementary power connectors None
Memory type GDDR5 128 Bit
Maximum RAM amount 3 GB 1 GB/2 GB
Display Connectors No outputs 1x DVI, 1x DisplayPort
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  • GeForce GTX 670MX has 82% more power consumption, than Quadro K420.
  • GeForce GTX 670MX is connected by PCIe 3.0 x16, and Quadro K420 uses PCIe 2.0 x16 interface.
  • GeForce GTX 670MX has 2 GB more memory, than Quadro K420.
  • GeForce GTX 670MX is used in Laptops, and Quadro K420 - in Desktops.
  • GeForce GTX 670MX and Quadro K420 are build with Kepler architecture.
  • Core clock speed of Quadro K420 is 276 MHz higher, than GeForce GTX 670MX.
  • GeForce GTX 670MX and Quadro K420 are manufactured by 28 nm process technology.
  • Memory clock speed of Quadro K420 is 382 MHz higher, than GeForce GTX 670MX.

Game benchmarks

high / 1080p 8−9 0−1
ultra / 1080p 5−6 0−1
QHD / 1440p 0−1 0−1
low / 720p 20−22 9−10
medium / 1080p 10−12 1−2
The average gaming FPS of GeForce GTX 670MX in Assassin's Creed Odyssey is 220% more, than Quadro K420.

Full Specs

  GeForce GTX 670MX Quadro K420
Architecture Kepler Kepler
Code name N13E-GR GK107
Type Laptop Workstation
Release date 1 October 2012 22 July 2014
Pipelines 960 192
Core clock speed 600 MHz 876 MHz
Transistor count 3,540 million 1,270 million
Manufacturing process technology 28 nm 28 nm
Texture fill rate 48.0 billion/sec 14.02
Floating-point performance 1,154 gflops 336.4 gflops
Length 160 mm
Memory bus width 192 Bit 128 Bit
Memory clock speed 1400 MHz 1782 MHz
Memory bandwidth 67.2 GB/s
Shared memory -
DirectX 12 API 12
Shader Model 5.1 5
OpenGL 4.5 4.5
OpenCL 1.1 1.2
Vulkan 1.1.126 +
CUDA + 3.0
CUDA cores 960
Bus support PCI Express 2.0
SLI options +
HDMI +
HDCP +
Maximum VGA resolution Up to 2048x1536
Bitcoin / BTC (SHA256) 11 Mh/s
Laptop size large
Optimus +
3D Vision Pro +
Mosaic +
Width 1" (2.5 cm)
Number of simultaneous displays 4
nView Desktop Management +
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