My current employer gave me a base model 15" rMBP which is a really nice machine. However, our team is currently developing a Swift application with Core Data. When using mogenerator, this results in a lot (~250) of Swift files with a single class in it. Compared to Objective-C code, Xcode takes a looooooong time compiling, minutes even for a minor change. I was wondering, are there developers here who can tell me if the nMP is really the fastest for this kind of task? Or perhaps the latest retina iMac is better for that?