Skip to main content
cancel
Showing results for 
Search instead for 
Did you mean: 

Don't miss out! 2025 Microsoft Fabric Community Conference, March 31 - April 2, Las Vegas, Nevada. Use code MSCUST for a $150 discount. Prices go up February 11th. Register now.

Reply
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.

Helpful resources

Announcements
Las Vegas 2025

Join us at the Microsoft Fabric Community Conference

March 31 - April 2, 2025, in Las Vegas, Nevada. Use code MSCUST for a $150 discount!

Jan25PBI_Carousel

Power BI Monthly Update - January 2025

Check out the January 2025 Power BI update to learn about new features in Reporting, Modeling, and Data Connectivity.

Jan NL Carousel

Fabric Community Update - January 2025

Find out what's new and trending in the Fabric community.

Top Solution Authors