So I've had an 27" iMac since 2013 (fully specced). However, now I'm at university, I really need a more portable Mac. Also, when I get home I don't want to sit at my desk, so my iMac really isn't getting as much use as it should be. Over the last couple of weeks I've been considering purchasing a new 15" MacBook Pro (I'll wait for the next upgrade, whether that's at WWDC or not until later in the year). I'd like to know about the performance differences I'll see from a fully specced 2012 27" iMac compared to a fully specced current 15" MacBook Pro (obviously we don't know the specs for the new upcoming model). Also, anyone else moved from an iMac down to a MacBook?