1. Deployment and Integration: Azure Databricks is a cloud-based service that integrates with other Azure services, allowing for seamless deployment and integration with existing workflows. PowerBI, on the other hand, is a standalone business intelligence tool that can be deployed on-premises or in the cloud, but may require additional configurations to integrate with other systems.

2. Data Processing and Analytics: Azure Databricks is built on the Apache Spark platform, providing scalable data processing capabilities for big data analytics. It offers advanced analytics features such as machine learning and streaming analytics. PowerBI, on the other hand, primarily focuses on data visualization and interactive reporting, with limited capabilities for data processing and analytics.

3. Collaboration and Notebooks: Azure Databricks provides a collaborative environment for data scientists and analysts to work together on data and analytics projects. It offers the ability to create and share notebooks, which are interactive documents that contain code, visualizations, and documentation. PowerBI, on the other hand, allows collaboration through sharing and publishing reports and dashboards, but does not provide a notebook-like environment for code-based collaboration.

4. Data Source Connectivity: Azure Databricks has extensive connectivity options, allowing users to connect to various data sources such as Azure storage, SQL databases, and data lakes. It supports both structured and unstructured data. PowerBI also offers a wide range of data connectors, but may require additional configurations or custom connectors for certain data sources.

5. Scalability and Performance: Azure Databricks is designed to handle big data workloads and can scale horizontally by adding more compute resources. It leverages the distributed computing capabilities of Apache Spark to process large volumes of data efficiently. PowerBI, on the other hand, is more suited for smaller datasets and may experience performance limitations when dealing with large volumes of data.

6. Customization and Embedded Analytics: PowerBI offers a high level of customization, allowing users to create custom visuals and embed them into other applications or websites. It also provides APIs and SDKs for developers to build custom solutions. Azure Databricks, on the other hand, focuses more on data processing and analytics, with limited customization options and no built-in support for embedding analytics into other applications.

In summary, Azure Databricks is a cloud-based data processing and analytics platform with extensive integration capabilities and collaboration features, while PowerBI is a standalone business intelligence tool focused on data visualization and reporting with customization and embedding options.