Report Filter:

A report filter conditions appear in the SQL used to retrieve the report result set from the database. The report filter is created as part of the report and is saved with the report definition.

View Filter :

View filters do not modify the SQL for the report like normal report filters do. Instead, view filters are applied to the overall result set after the SQL is executed and results are returned from the data warehouse.

view filters it  filter the data at microstrtegy level but repot filtr   are filter the data at data base level