What should i upgrade?

[Buttonstuck]

https://pcpartpicker.com/list/Mxn6VY

this is some of my part with 4gb ram?
what should i change in order to play game like GTA V?

this video show my graphic can play GTA V? i dont want to change this actually..
https://www.youtube.com/watch?v=OWxPf_zEl0w

maybe consider some future upgrade..

 

[LucoTF]

GTA5 should be just about playable with your setup at 720p / 30fps