Native vs Banner, hard numbers

Can someone do a comparison on banners vs native ads? All I could find online is a bunch of studies and vague % on views and engagement stuff. I am looking for more of a concrete CTR, eCPM, Impression comparison so i can judge to try native or not.

It would be nice to know what banners got out of 1 user vs what native ads get out of 1 user in your app.