GeForce GTX 675MX vs Quadro K420

If you are going to buy a new graphics card and are choosing between GeForce GTX 675MX and Quadro K420, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 675MX stacks up against Quadro K420, check out specs charts below.

GeForce GTX 675MX is a Laptop Graphics Card

Note: GeForce GTX 675MX 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 675MX here:

Main Specs

  GeForce GTX 675MX Quadro K420
Power consumption (TDP) 100 Watt 41 Watt
Interface MXM-B (3.0) PCIe 2.0 x16
Supplementary power connectors None None
Memory type GDDR5 128 Bit
Maximum RAM amount 2 GB 1 GB/2 GB
Display Connectors No outputs 1x DVI, 1x DisplayPort
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  • GeForce GTX 675MX has 143% more power consumption, than Quadro K420.
  • GeForce GTX 675MX is connected by MXM-B (3.0), and Quadro K420 uses PCIe 2.0 x16 interface.
  • GeForce GTX 675MX has 1 GB more memory, than Quadro K420.
  • GeForce GTX 675MX is used in Laptops, and Quadro K420 - in Desktops.
  • GeForce GTX 675MX and Quadro K420 are build with Kepler architecture.
  • Core clock speed of Quadro K420 is 276 MHz higher, than GeForce GTX 675MX.
  • GeForce GTX 675MX and Quadro K420 are manufactured by 28 nm process technology.
  • Memory clock speed of GeForce GTX 675MX is 18 MHz higher, than Quadro K420.

Game benchmarks

high / 1080p 9−10 0−1
ultra / 1080p 5−6 0−1
QHD / 1440p 0−1 0−1
low / 720p 21−24 9−10
medium / 1080p 12−14 1−2
The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 240% more, than Quadro K420.

Full Specs

  GeForce GTX 675MX Quadro K420
Architecture Kepler Kepler
Code name N13E-GSR 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 1,256 gflops 336.4 gflops
Length 160 mm
Memory bus width 256 Bit 128 Bit
Memory clock speed 1800 MHz 1782 MHz
Memory bandwidth 115.2 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) 63 Mh/s 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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