What hashrate is supposed to be on i5/i7? And what is the profit for them?
okay but you can also easily check your hashrates via hashrates.org and calculate the profit on the pools calculator of your favorite pool 
True, and we have a document for Verium on Slack, that has a lot of different CPU's with Memory configs on it, including what OS....yes Linux gives a 20% boost on average, comparing it to windows.
Just type !hashcomp in any of https://vericoinandverium.slack.com/ channels