Yeah, I do play some GTA V and ARK Survival Evolved, and have some screen terring. I know G-Sync helps with that, but those are a little pricie. (Not under 350,-?) maby there is something els that helps with that?
1440p is a option, if it works well with a second 1080p screen.
P.S. I edited my post with some basic specs I think you wanted.