Know Your Limits – A Google Analytics Reference Guide
Its good to know the limits of your Google Analytics implementation. All software has it limits and Google Analytics is no exception. From Google’s viewpoint, setting boundaries and limits prevents errors and system overload, and it ensures that other users of the service are not affected by the processing of someone else’s data. For example, a website with a relatively low amount of traffic data should not have its reports delayed due to the processing of another user’s data from a site that has more traffic.
The table below lists the limits set for the free version of Google Analytics. If you feel you need more horse power, the paid for Premium version is available (I will compare Free versus Premium in a later post). I reproduce this content form Chapter 3 of the book:
Click to enlarge the table (last update 26-Oct-2012)