large datasets performance problems with 400+colums tables

[Jackson123]

hello everyone,

now I have a tabular model in powerbi desktop with star schema. several dim_tables and one fact_table. this fact table is very big with 400+columns(most columns are kpis )，one quarter data size is 3 milion rows. we plan load one year data with import mode. then the size of pbix file is more than 1GB. these columns cannot be delete and performance must be quick. DQ is very slow. so , in order to keep good performance , we choose import mode. but I wonder is it ok with model performance ? I mean P2 OR P3 premium capacity can keep good performance for large datasets with 400+columns talbes.

[arvindsingh802 · Accepted solution]

Yes even P1 would be able to handel 1GB dataset easily.

Please make sure keeping all your DAX optimised and incremental refresh in place to get best performance