In one of the ASP .Net site we are currently working we have a bulk load of SSRS reports. We have forms authentication for the site and reports have already been created and de
1- client report don't need to report server for rendering. (advantage)
2- you must make a server report by creating a report server project in BIDS but client reports must create in VS.
3- server reports use stored procedure or text script as data provider but client reports use dataset or xml datasource for this.
4- server reports use report server for rendering of the report but for client reports this work done at report viewer control.
5- client reports don't need SSRS installation but server reports need that.
6- for working with server reports you must deploy reports but in client reports you don't need this work.
7- for enterprise projects, it is better that you use server report but in other projects client reports are better.