What is the performance difference on CEMU (with games such as BOTW or Wind Waker) between a Ryzen 7 2700x vs an i7 8700k? I know the i7 8700k performs better, but I would like to get a rough idea of how much better, for example percentage-wise with respect to frame rate.

I am building a new system that will be primarily used for gaming (modern games, older games, and emulation), and I am trying to decide between the Ryzen 7 2700x and the i7 8700k (or the upcoming 9th gen refresh). I will be pairing it with a 1080 ti. The displays are a 3440x1440 @120 Hz monitor and a 4k TV.

I would greatly appreciate your feedback and related personal experiences!