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Power BI Model Size and Memory Usage

Chris Webb lays out the limitations:

You probably know that semantic models in Power BI can use a fixed amount of memory. This is true of all types of semantic model – Import, Direct Lake and DirectQuery – but it’s not something you usually need to worry about for DirectQuery mode. The amount of memory they can use depends on whether you’re using Shared (aka Pro) or a Premium/Fabric capacity, and if you’re using a capacity how large that capacity is. In Shared/Pro the maximum amount of memory that a semantic model can use is 1GB; if you are using a capacity then the amount of memory available for models in each SKU is documented in the table here in the Max Memory column:

Read on to learn more.