1950x's true operating speed

[RyanTScott]

At present my 1950x is set to stock speeds but according to CPU-Z My 1950x is currently running at 3.7ghz. Can someone explain this please?

 

[JamesSneed]

Base Frequency
3.4 GHz

Boost Frequency
3.7 GHz (all-core 3.6 GHz, four-core 4 GHz, 4.2 GHz four-core XFR)

See:
https://www.tomshardware.com/reviews/amd-ryzen-threadripper-1950x-cpu,5167.html