Hey guys! I am considering buying the new MacBook Pro 15" with the Radeon Pro 460. On the other hand I have an iMac 27" late 2013 with 3,4-GHz quad-core Intel Core i5-processor (Turbo Boost up to 3,8 GHz) with NVIDIA GeForce GT 775M-processor 2 GB GDDR5. I want some more portability, but I don't want to pay $3.000 if the performance is the same as my old iMac:-/ Will there be a difference in perfomance (I really can't tell, since I don't know much about specs)? I mostly use my iMac for some light editing, gaming (Football Manager, WoW and LoL) and writing. Any advice would be awesome!!