1. Framework vs. Library
React: A JavaScript library for building user interfaces, focused on the view layer (component-based architecture).
Angular: A full-fledged framework for building web applications with tools like routing, state management, and built-in solutions.

 2. Performance
React: Uses a virtual DOM for efficient UI updates, making it faster for complex UIs.
Angular: Uses a real DOM, but employs techniques like change detection and ahead-of-time (AOT) compilation to optimize performance.

3. State Management
React: Requires external libraries for state management (e.g., Redux, Context API, or MobX).
Angular: Comes with RxJS and built-in state management, leveraging Observables.