Intel Core i9 9900K Linux Benchmarks - 15-Way Intel/AMD Comparison On Ubuntu 18.10
The Core i9 9900K was 10~23% faster than the Ryzen 7 2700X with IndigoBench.
Similarly, the i9-9900K was delivering faster performance in the Blender 3D modeling software.
As well as great Python and PHP scripting performance in these single-threaded benchmarks.