Re: Battlefield 1: Upgrade RAM or CPU?
I see this question a lot lately, there's a misconception going around about RAM with this game.
I'm using 6GB DDR2 RAM and I don't get any frame drops anymore, for a few different reasons, my PC is considerably lower spec than yours but I'm playing with a consistent 50-60 FPS on most maps.
Check this post out for a lot of great tips which seem to help most people in your situation: https://www.reddit.com/r/Battlefield/comments/57nh6y/bf1_performance_tips_for_pc_potentially_huge_fps/