Mobile First
Drupal 8 is mobile first in its approach. It includes inbuilt responsive templates and even Administration pages are snap to use on any device, any screen, and any site.
Multilingual
Drupal 8 boasts extensive multilingual features right out of the box. The admin interface has built-in translations, which allows admin users or content editors to create phrases in multiple languages.
Enhanced Content Administration
Drupal 8 features a CKEditor which is one of the best text editors on the market designed to simplify web content creation. Content editors can edit texts on any page without having to switch to the full edit mode. And more importantly, you can manage your site's content from your smartphone or tabs!
Enhanced Performance
You will enjoy the speed with Drupal 8. As part of the overall transition to the Symfony framework, Drupal 8, with Symfony framework, caches all entities and only loads Java Script when necessary and modules which a page needs.
New Theme Engine - TWIG
Twig is a modern template engine which is Fast, Secure & Flexible. It makes easy to design beautiful and functional sites.
Web Services Built-In
Drupal 8 now makes it possible to use itself as a data source, and output content as JSON or XML.
Interoperability and Scalability
With Drupal 8 it is possible to connect your Drupal site with any platform or application you want or need.
Industry Standards
Drupal 8 uses HTML5 and aligns with the latest PHP 7 standards.
Easy Development
With Drupal 8 you can build faster, build better, and build more. 'VIEWS' module has been integrated into Drupal 8's system. Site administrators can now customize the front page, admin page, listing blocks, and create custom filters without relying on a more technical development team.
Configuration
Drupal 8's file system-based configuration management system enables you to keep track of the important details during content configuration and revision, and keep the configuration and production data separate.
Lesser Dependency on Modules
Drupal 8 is an all-inclusive platform, which reduces the dependency on additional Modules, refining the operational ease, efficiency and user-experience by only loading relevant modules.
Fields
New field types like entity reference, link, date, e-mail, telephone, etc., aid content creation, and now you can attach fields to more content types, as well as create custom contact forms by attaching fields to them.
Accessibility
Drupal 8 has excellent support for industry standard accessibility technologies, like WAI-ARIA.
Object Oriented Programming
Drupal 8 comes with object oriented programming concept Symfony framework.