Actually I think you will be alright with a GTX1050ti however if you go beyond that you will begin to bottle neck.
I HIGHLY encourage you to read this article and listen to the embedded video in its entirety. It explains bottlenecking thoroughly. Excellent, Excellent Article.
https://www.pcper.com/reviews/Systems/Quad-Core-Gaming-Roundup-How-Much-CPU-Do-You-Really-Need