I guarantee you an FX-8370 isn't even close to being the fastest CPU even at 10 GHz. I bet most desktop CPUs you can buy nowadays will be faster out of the box.
Does it matter? A modern CPU at 5.5ghz will outperform an 8 year old CPU overlocked to 10ghz on just about any reasonable workload even if it’s single threaded.
The video below compares 8150 against CPUs from 2020 (i.e. no 5900x or 12900KS), includes data from 8370.
https://youtu.be/RpcDF-qQHIo?t=425