Hello, Newbie to MacRumors, tried to find a specific answer to my question in previous threads but came up empty, hopefully someone here has been in the same situation as me. I have a 2012 macbook pro 15" macbook pro, upgraded to SSD and 16gb of RAM, its great and handles everything I need perfectly. However, its super heavy (5.6lbs) and battery life is average 3-4hrs so I am considering moving to a 2015 retina 13" macbook pro with 16gb RAM. I travel for work frequently so the 2lb weight saving and more compact profile is pretty appealing, I have used a 13" before and the loss of screen real estate does not bother me. I do a lot of photography but most of my editing is not too intensive, rarely doing anything hardcore in photoshop however every now and again I will edit short videos, mostly 1080p, rendering some 4k timelapses from time to time. Do you think I will notice I big difference in processing power going from the 2012 quad core to the 2015 dual core?? I'm not concerned with it being able to fly through the tasks more just that it will get it done, without getting insanely hot and sounding like the fans may explode! Any input would be greatly appreciated!