Overclock iMac CPUs

[Zapp21]

I browsed through some Geekbench scores and stumbled across this:
https://browser.geekbench.com/v4/cpu/9270099

A 5K iMac, i5-7600K running with a base clock of 4.4 GHz (instead of 3.8GHz)

Single-Core: 5849
Multi-Core: 17959

I'm curious how to achieve this? As far as I know, the i5-7600K does have a free multiplicator. But how do I modify it?

 

[MadDane]

I am not 100% certain, but it might be a Hackintosh that is just showing up as an iMac.

 

[sebulban]

It's a hackintosh

 

[cynics]

Mac's thermal solutions don't leave room for overclocking. Even if you could you would't see good results due to thermal throttling. More than likely its a hackintosh.

 

[Zapp21]

Ok thanks, good to know. I wonder how these Hackintoshes distort the Geekbench scores of official machines.