What kind of performance can I expect my 13" 2011 macbook pro if I try to run civilization 5? please help

I am not really sure if buying civ. 5 is worth it if I won't get decent frame rates. I have: Processor- 2.3 GHz Intel Core i5 Memory- 4 GB 1333 MHz DDR3 Graphics- Intel HD Graphics 3000

and yes, I know that i should have not gotten a mac if I wanted to play games. Just stop.