Will 8gb of ram work for a gaming computer along with 4 or 6gb or vram

8 GB of ram Should be enough, if not get 16 GB, you should at least have DDR3. I cant judge how many fps your going to get because i dont know what GPU you have, but 6 GB is more than enough vram for 1080p if your GPU is fast enough. what GPU do you have?
 

I plan to build a pc using a Ryzen 5 1600 and GTX 1060 6gb