how many request can freeradius handle?

Hello All i am very new to this list... i am working on project for a WISP.. they want a radius server to manage their clients.. my question is how many subscriber can a freeradius server handle... i know we can load balance the database but currently i am working on a single server with the following configuration... Intel Core i5 Processor 3.00 GHz+ Intel Smart Cache: 6.0 MB (4 cores / 4 Threads) 16GB RAM DDR3 2X500GB Hard Disk Can this server handle 5000 broadband subscriber? -- *Regards*Santu Roy www.megahostzone.com Contact No : 09474577999 / 09153233966