The upcoming flagship SoC from Qualcomm was believed to be called Snapdragon 8150 due to its SM8150 denomination found in early benchmarks, but the official name will be Snapdragon 855. Details on the modem, NPU, GPU, CPU clusters and imaging features were also leaked ahead of the official announcement that is scheduled to take place later today at Qualcomm's Technology Summit.
https://www.notebookcheck.net/Qualcomm-s-Snapdragon-8150-officially-named-Snapdragon-855-details-leak-before-launch-event.374036.0.html