Skip to main content
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Did you hear? There's a new SQL AI Developer certification (DP-800). Start preparing now and be one of the first to get certified. Register now

Reply
nimblecat
Frequent Visitor

Power Query M vs. Power BI DAX Calculated Column

‎09-27-2022 10:54 AM

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!

Labels:
Message 1 of 3
2,958 Views
0
2 REPLIES 2
ppm1
Solution Sage
Solution Sage

‎09-27-2022 06:25 PM

Please see this article.

Comparing DAX calculated columns with Power Query computed columns - SQLBI

 

Pat

Microsoft Employee
Message 3 of 3
2,892 Views
0
talbot
Regular Visitor

‎09-27-2022 05:44 PM

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.

Message 2 of 3
2,899 Views
0

Helpful resources

Announcements
April Power BI Update Carousel

Power BI Monthly Update - April 2026

Check out the April 2026 Power BI update to learn about new features.

Fabric SQL PBI Data Days

Data Days 2026 coming soon!

Sign up to receive a private message when registration opens and key events begin.

New to Fabric survey Carousel

New to Fabric Survey

If you have recently started exploring Fabric, we'd love to hear how it's going. Your feedback can help with product improvements.

Power BI DataViz World Championships carousel

Power BI DataViz World Championships - June 2026

A new Power BI DataViz World Championship is coming this June! Don't miss out on submitting your entry.

View All