I work with 7D, T3i, A7s, C100 and RED Scarlet mounted on Ronin-M mounted on DJI S900, Inspire 1 and Phantom 2, Phantom 3 and Phantom 4. Adobe Creative Cloud CC (Premier Pro CC, After Effects CC).
780Ti on the server as well. Liquid cooled might I add.
Sold the server. Have a mini workstation that performs far better is is so much more silent
Hmmm... That's riding the edge. I would be very surprised if you could edit 4k without serious lag on there. RAM is not necessarily your only bottleneck. SATA speed is a big one, I don't know what they had in 2012 in a MacBook, it should be fine. CPU will struggle.... a lot. Does it have a dedicated GPU?
Maybe Google should give them some pointers ;)
EDIT: "Tech specs for Prime S" section needs the aperture changed from "T.28" to
Haven't used this version of final cut but I can say that the last version of FCP was not even close to Premiere and while its functionality might be close, it takes so long to do the exact same thing! I can just say that CC just rolled out their CC 2017 so Premiere also has a major update, one of which is optimization which was much needed.