Thinking about selling my copy of RAGE on the 360 and getting it on Mac. But I'm unsure of how well it would run on my system, and I wouldn't want to switch versions and waste money on something that won't run well. So, if anyone could help me out here, how well would RAGE run on these specs? Thanks!

System: iMac 21.5-inch, Mid 2011

OS: Mac OS X 10.11.3 El Capitan

Processor: 2.5 GHz Intel Core i5

Memory: 4 GB 1333 MHz DDR3

Graphics: AMD Radeon HD 6750M 512 MB

Resolution: 1920x1080