1. Components Provided: Material Design for Bootstrap offers a wide range of pre-designed components that can be easily integrated into web applications, while Nuxt.js focuses more on frameworks and libraries for building Vue.js applications.
2. Styling Approach: Material Design for Bootstrap follows Google's Material Design guidelines for UI components, providing a consistent and visually appealing look, whereas Nuxt.js allows for more customization in terms of styling and design.
3. Purpose and Focus: Material Design for Bootstrap is primarily focused on providing ready-to-use design elements to enhance the UI of web applications, while Nuxt.js is more focused on building fast and scalable Vue.js applications with the help of a powerful framework.
4. Community Support: Material Design for Bootstrap has a strong community backing due to its popularity and ease of use, whereas Nuxt.js also has a supportive community but is more geared towards developers working with Vue.js and server-side rendering.
5. Ease of Integration: Material Design for Bootstrap can be seamlessly integrated into existing projects built with Bootstrap, offering a quick way to implement material design principles, whereas Nuxt.js requires a bit more effort to integrate due to its focus on Vue.js applications and server-side rendering capabilities.
6. Development Speed: Material Design for Bootstrap can help speed up the development process by providing ready-to-use components, while Nuxt.js, being a framework for Vue.js applications, may require more initial setup but can lead to faster and more scalable development in the long run.

In Summary, Material Design for Bootstrap and Nuxt.js differ in their provided components, styling approach, purpose, community support, ease of integration, and development speed.