I didn't find another thread to post this in and not go very much off topic so im posting this bit of info here. In case anyone had any doubts is you can actually do architecture work comfortably and without problems with the rMB, you can. As an architect and real estate developer I found myself working in Vectorworks 2015, Cinema 4D (Demo version until it runs out and I switch to full) , Excel, and a few other apps working at the same time without any problem. Rendering in Cinema 4D and drawing and 3D modeling in Vectorworks simultaneously is very smooth. I'm running a 1.2 and it's still responsive under heavy load, takes a little longer to render or do some things than my old mid 2012 rMBP (2.7, 16G ram) but it is definitely up to the task.