Available as part of the Office 365 package
Licensed full desktop version
Free Tableau Public version (less features & requires public sharing of the dashboards)
Performance tends to be slow, especially when connected to multiple large data sources.
Satisfactory performance even when connected to large-size data.
All-in-one interface: the visuals are built directly on the report page.
Separate interfaces for the individual visuals and the dashboard report. “Story” tool for multi-tab dashboards.
Built-in data manipulation
Power Query ETL (extract, transform, load) tool using M language & DAX
No built-in ETL tool. Transforming and enriching the data possible with the “Calculated Fields” tool.
Each dataset is separate by default. Possible to connect datasets with the “Edit Relationships” tool.
Each dataset must be connected (either directly or indirectly) with the “Relationships” tool before the data visualization process can begin.
Relationship between the visuals
All visuals on one page are connected by default. Possible to modify the connections with the Filter, Slicer and Drilling options.
All visuals are separate by default. Possible to create connections (filters, slicers, actions) with the “Actions” tool.
Sharing and security
Private sharing possible through Sharepoint, other cloud services or email.
Public sharing is available via link and embedding. However, this usually requires a special permit from the organization system administration.
The full desktop version allows private sharing by email and cloud working environments.
Possible to purchase own server space for additional security.
The free Tableau Public requires sharing of each dashboard with the external public.
Fast and easy to learn the basic features required for the standard IM products (such as 3W or snapshot)
Learning the basic functions and accustoming to the interface and terminology normally requires considerably more time and practice than with Power BI.