The multi-threaded tests ran in CineBench R15 and CPU-Z reveal that the new i7-8700K is significantly outperformed by AMD's Ryzen 7 1800X. Nonetheless, Geekbench is where the i7-8700K shines, overtaking the AMD competition in both single-thread and multi-threaded tests.
https://www.notebookcheck.net/Intel-s-Core-i7-8700K-desktop-CPU-gets-benchmarked.247668.0.html