Hi Bruno ,
The main website Telerik.com which is based on Sitefinity ( I am not including documentation sections and demos subdomain) has about 6000 views per day. The page caching is enabled and we are under NLB. CPU and Memory usage is something that really depends on the controls that you have on a page, how they query the database what techniques you use.
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Telerik Public Issue Tracking
system and vote to affect the priority of the items