It's the season of new Qualcomm flagship benchmarks, ahead of the processor's official release in the form of 2019 premium mobile devices. Some of them have claimed that it does better than the A12 Bionic found in the most recent iPhones. However, Antutu has released what may be the definitive benchmark for the new chipset.
https://www.notebookcheck.net/Antutu-tweets-its-own-official-Snapdragon-855-benchmarks.396511.0.html