Have people using Nvidia web drivers + 4k monitors achieved proper resolution scaling?

I'm curious if people have gotten a "looks like 2560x1440" scaled resolution working on 4k monitors when using Nvidia web drivers on Sierra and High Sierra. This is a pretty specific question, but I just want to make sure my setup will work properly, as I have a 27'' 4k monitor, and 1080p scaling is way too big.