I'm an avid photographer, however this won't be my main computer for editing. I'm looking for a portable computer for my traveling and editing of photos in raw format and will be using Lightroom and Photoshop heavily. I can't decide between the 2016 non-touchbar 13" Retina or the 2015 13" Retina. Both will be 8gb RAM 256gb SSD. Spec wise, all I can tell is the new one is 2.0GHz while the old 2015 is 2.7GHz which seems to be a winner. I can deal with dongles, but I can't really tell which ones better than the other performance wise. Any suggestions? Thanks!