Quadro CX vs Quadro K420

Find out if it is worth upgrading your current GPU setup by comparing Quadro CX and Quadro K420. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Quadro CX and Quadro K420. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.

Main Specs

  Quadro CX Quadro K420
Power consumption (TDP) 150 Watt 41 Watt
Interface PCIe 2.0 x16 PCIe 2.0 x16
Supplementary power connectors 1x 6-pin None
Memory type GDDR3 128 Bit
Maximum RAM amount 1536 MB 1 GB/2 GB
Display Connectors 1x DVI, 2x DisplayPort, 1x S-Video 1x DVI, 1x DisplayPort
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  • Quadro CX has 265% more power consumption, than Quadro K420.
  • Both video cards are using PCIe 2.0 x16 interface connection to a motherboard.
  • Quadro CX has 1535 GB more memory, than Quadro K420.
  • Both cards are used in Desktops.
  • Quadro CX is build with Tesla 2.0 architecture, and Quadro K420 - with Kepler.
  • Core clock speed of Quadro K420 is 274 MHz higher, than Quadro CX.
  • Quadro CX is manufactured by 55 nm process technology, and Quadro K420 - by 28 nm process technology.
  • Quadro CX is 107 mm longer, than Quadro K420.
  • Memory clock speed of Quadro K420 is 182 MHz higher, than Quadro CX.

Game benchmarks

high / 1080p 1−2 0−1
ultra / 1080p 0−1 0−1
QHD / 1440p 0−1 0−1
low / 720p 10−12 9−10
medium / 1080p 2−3 1−2
The average gaming FPS of Quadro CX in Assassin's Creed Odyssey is 20% more, than Quadro K420.

Full Specs

  Quadro CX Quadro K420
Architecture Tesla 2.0 Kepler
Code name GT200B GK107
Type Workstation Workstation
Release date 11 November 2008 22 July 2014
Pipelines 192 192
Core clock speed 602 MHz 876 MHz
Transistor count 1,400 million 1,270 million
Manufacturing process technology 55 nm 28 nm
Texture fill rate 38.53 14.02
Floating-point performance 462.3 gflops 336.4 gflops
Length 267 mm 160 mm
Memory bus width 384 Bit 128 Bit
Memory clock speed 1600 MHz 1782 MHz
Memory bandwidth 76.8 GB/s
DirectX 11.1 (10_0) 12
Shader Model 4.0 5
OpenGL 3.3 4.5
OpenCL 1.1 1.2
Vulkan N/A +
CUDA 1.3 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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