3GB to 4GB Vram enough for 1080p gaming?

Consider to buy GTX 1060 or the coming RX470 ~RX460

I only play games from Jp company,
like resident evil series,
Dragon quest hero,
coming resident evil 7 , tekken 7, Final fantasy 7 remake , and   Shenmue 3.

seems that only directX 11 is enough from those JP game makers.

by GTX1060  or RX470 level, is 3GB to 4GB already suffieient to run games in Max settings @1080p ?