I've seen it mentioned that ryzen is more memory speed sensitive, seen Corsair Vengeance LPX 16GB (2 X 8GB) DDR4 3600 MHz CL16 kit for £35 on UK amazon, see a 32 GB kit for £60 for 3600, £52 for 3200. 32 is super overkill for most people still (shit I recall when 16GB was considered overkill), but it's cheap enough that it's harder to say it's a waste imo.

Side note, GOW is what sold me on hdr and was the game that got me to upgrade from a 780ti and 3rd gen i5, literally couldn't even run the game.