Hi, So I have been religiously searching and reading a plethora of reddit subforums for the last two+ months. There is much conflicting, but also confirming information which has made my choice even harder. I have been a windows/PC user for my entire life. After 15 years, I have become fed up with the constant glitches, crashes, and random updating of the system or drivers, that many times regress the user experience. The battery life is usually non-existent after 2 years, the eventual slowdown of the system, and the hardware destruction further adds to the limitation of these computers. I have mainly used HP laptops (Intel Gen 5 processors/6 Gb RAM minimum) and have played around with a Dell and a Lenovo laptop. Each company has their ups and downs; but I try to take care of these expensive devices like they're my baby regardless of my loyalty to the company. Currently, I am waiting for the new Macbook Pro to be released that I will be buying that; I have been using iphones since 3gs and the IOS software simplicity is inspiring. I wish to carry that over to the Macbook Pro. However, I need some advice regarding a few things and I thought the best way was to ask the people who use these products regularly. I know a quad core is more powerful in overall multi-tasking and handling heavy loads of usage. But many reddit users have been fine with a dual core. I am simply going to be using the rMBP for browsing the internet, downloading/watching movies and songs, lots of Youtube, social media, and mainly graduate school (biological sciences/taking and annotating notes/powerpoint, NOT programming/gaming/anything computer science/coding related). I may occasionally make mixes using Audacity or Acid Pro. This brings me to the question that's been on reddit but with varying answers (please, do not state it is up to me as I came on reddit in order to ask for advice. In the end yes, the decision will be up to me): Should I go with a 15" rMBP with a quad core or a 13" with a dual core? I would definitely like the 15" bigger screen but I believe the extra 8gb of RAM would be a waste of extra $500 for the tasks I require. The 13" does have a slightly more portable advantage but this would not make much of a difference to me in terms of weight. Also, for note taking notes, does 13" vs 15" really make much of a difference in terms of ease of usage or taking of physical space? To make matters even more complex, I plan on keeping the Macbook Pro for the next 4-5 years. If I get the 13" with a 8gb, would the RAM seem outdated in a few years since we can no longer upgrade Macbooks? Technology always advances! Would someone be able to explain the difference between a higher CPU speed in a dual core (13") vs the lower CPU speed in a quad core (15") as it pertains to the Macbook Pros? In your opinion, is it better to have a higher clock speed with lower cores or a lower clockspeed with higher cores? Any other advice you guys recommend for switching to a Mac from a PC after 15 years?