В "Microsoft CRM Sandbox: Downloads: Home" есть такой:
Microsoft Dynamics CRM 3 Performance Report
This report summarizes the performance test results of 2000 concurrent users of Microsoft CRM 3.0 executing a heavy load of sales and marketing transactions on a single 4-processor Intel Xeon CRM application server and a single 4-proc dual-core Intel Xeon database server. Thanks to Intel for its support of these efforts.
Короче, на хорошем серваке не рухнет.
