I can't give you that. Not only is each system a bit different, but if you're on a mac your performance is going to be worse than an equivalent PC, making a specific spec hard to find. Mess around with them until you find something that works, but I can tell you it won't be anything on high.
We cant tell you exactly which ones because there are many variables involved, but some trial and error can get you to the right settings. Start with medium on everything and if you notice it lags turn down a setting or two to low.