So I have been going back and forth between the 13 and the 15. I don't really do much heavy stuff other than planning on using Imovie for a hobby. Im curious if the dual core will do just fine but just take longer to process things? If so how much slower are we talking about? In addition I have read a lot about RAM. It seems like some people say max out the RAM to 16GB to future proof it, and others say there is no reason anyone is going to need 16GB for a long time. Thoughts??