Unfortunately that's not the same as running an RTX 2070 regular, with the 3600/3600X at 1080/1440.Hi, have you checked techpowerup's recent CPU reviews? They have summary Game Tests sections for the more popular resolutions using a 2080 Ti. Then you can use Steve's data to draw your own conclusions depending on your GPU.
Those are different class of cards and will have different margins of performance increase at different resolutions.
I want the numbers for a 3600 w/RTX 2070 vanilla @1440P!