That would probably be a huge waste of money. I doubt that the nex 3000 series will give you more than 20-30% performance increase for a price that will probably - as always these days - be over the top.

Also since your only on 1440p i dont see any point. Maybe if you had a 4k monitor and the game is too demanding - but i even doubt that - i mean its also made for the last gen consoles.

If you think about it because of raytracing - just look at videos from BF5, Tomb Raider etc. the difference most of the time is not or hardly visible while it costs you 30-50% of your FPS.