September 8th
February 22nd
For beginners, Power BI is easier to start with. At an intermediate level, when you want to do something beyond the basics, Tableau has an advantage (labels, moving things around, annotate something, more control over visualization, especially regarding design). When you again grow out of that, you see that Tableau has limitations - you need to use more hacks, tricks, and workarounds to succeed.
Tableau is stronger for advanced visualization. For example, the scatter plot is better than in Power BI, and if you're a heavy visual type, it has an advantage - although Power BI has a good scatter plot too. On the other hand, Power BI supports Python, you can also use machine learning and a Phyton script.
It really depends. From what I (Andrej) have read, Power BI is a little bit faster, stronger, and can handle billions of rows in different ways. The database is optimized for a lot of value of information. But also Tableau has a great database engine, it depends on the use-case. But most of the time it is not about the capability of the tool, but how to use it. In both tools, you can have a lot of reasons why a tool can run slower.
