With you playing?
I dont know, maby 20-5ish.
Edit-
Think of this site. It has a 2.8ghz P4 with 1gb ram. The site never laggs, and there are usually alotta people on. Is it laggy for you? Me neither and there is..
263 (19 members and 244 guests)
I mean, sure there are major major differences, but kinda the same prinipla.