When comparing Card Board vs Speed Dial [FVD] - New Tab Page, 3D, the Slant community recommends Speed Dial [FVD] - New Tab Page, 3D for most people. In the question“What are the best new tab extensions for Chrome?” Speed Dial [FVD] - New Tab Page, 3D is ranked 14th while Card Board is ranked 55th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Open source (MIT)
Source code can be accessed at https://github.com/dotlouis/cardboard
Pro Lots of widgets
The extension has cards for apps, bookmarks, quick settings, top sites, downloads, history, session and system.
Pro Can provide system information
The extension has a widget that displays CPU and memory usage as well as storage information.
Pro Google Now style layout
The extensions has a clean customizable card-based interface.
Pro Simple and beautiful
Pro The best
Cons
Con Limited customization options
While it's possible to choose which cards are displayed, there's no way to change the order of cards.
Con Cannot access chrome setup.
Con Can't change the default search engine
Default search engine is Yahoo as of Nov 2017 - can't change it, like in other speed dialers.