Now with my brand-new rMBP, I'm trying to setup the best way to connect. I'm wondering if I should upgrade my router to AC or buy a thunderbolt gigabit adapter. The price doesn't matter and I have access to LAN close to where I'm going to use my Macbook mostly. I only care about the speed. If AC gets me almost gigabit performance in real life, I'll take AC. Otherwise, I'd rather be wired. Anyone has ran the test comparing these two connection methods? Thanks a bunch.