Hi all! This is my first post on this forum, so bear with me I'm looking to buy a 15" MacBook Pro Retina for school and I'm not really sure whether to go with the BEST one or the not as loaded one. My question is what are the differences between the different levels of GHZ (2.4GHz vs. 2.7GHz), the different levels of Turbo Boost (3.4GHz vs. 3.7GHz), the 8GB vs. 16GB memories and the amount of flash storage (256GB vs. 512GB)? Basically, what are the differences between each spec element of the two computers, and what options would be best for an average college student/best worth the price? Thanks!