Mapbox delivers smooth, fast maps via vectors. Their design and architecture allows you to adjust the map, fonts and icons to your style or branding.
Mapbox Gallery is a great introduction into the power of what can be done with your own Styling.
Mapbox is built on Open GL. Basically, built upon technologies that make video games.
From Mapbox's Glossary on GL
Mapbox GL is a vector rendering framework for highly customizable and responsive client-side maps. Maps render at a super high framerate and allow for dynamic styling.
Mapbox Styles out of the box
- Light & Dark
- Satellite (Mapbox offers cloudless satellite coverage at certain zoom levels)