During the OnePlus 7 Series launch event (on May 14, 2019), the OEM announced that the flagship of this line scored 111 in its DxOMark review. This puts it behind just 2 other premium devices in the benchmark's rankings.
https://www.notebookcheck.net/The-OnePlus-7-Pro-hits-the-big-time-in-DxOMark-s-camera-tests.420645.0.html