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July 28 - August 9 | Final Round of the Power BI Dataviz World Championships. This is your chance. Learn more

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nimblecat
Frequent Visitor

Power Query M vs. Power BI DAX Calculated Column

Hello, I want to compare the performance (loading time, memory, CPU cores etc.) between Power Query M vs. DAX calculated column. Is there an easy way to see the performance of running one or the other? Maybe an add-in or something I can use to compare the two? If not, any thoughts on general best practices would be greatly appreciated!!!

Thanks!

2 REPLIES 2
ppm1
Solution Sage
Solution Sage

Please see this article.

Comparing DAX calculated columns with Power Query computed columns - SQLBI

 

Pat

Microsoft Employee
talbot
Regular Visitor

My understanding is limited, but I believe Dax calculated columns are preferable to Power Query M merge statements, but otherwise, Power Query M is preferable to Dax.

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