Essentially, it's the same price. Performance wise, looks like M5 is hitting 2800/5800 single/multi core geekbench, where M7 is more like 2900/6000 (so pretty similar). The question is, which seems like the better deal (I know, person to person), just looking for some advice. I'm a physician, so my laptop is for writing papers, simple web stuff, and charting over citrix. Maybe some simple imovie editing, but that's it. First off, does Macbook seem like enough for that? For those of you with the 2015 MBP, how overpowered would that be for what I use it for? I have used 210/250 GB on 2011 MBA, 111 of which is "other," and plenty of the rest is stuff I can delete (no one needs all 3 batman moves on their laptop all the time...). I suppose my question is how much "other" are you guys seeing in your computers? Also, if I wanted to partition to give some to Windows for work stuff, how much would you use/recommend?