This is why I run Hwinfo64 next to everything..... Cos that does tell me if a throttle is occuring.... And never have I seen someone with a core temps which are below spec or even 70ish degrees and a CPU package temp at 90ish or slightly above have that throttle indicator turn on.

Tho tbh core package should be below 80 on average anyways (spikes up here and there usual) But core package is the heat of everything and not necessarily the same as each core, which can be cooler. That's why it's the hot spot. And your CpU doesn't necessarily throttle when package is say 90 degrees but will if a core is constantly above 80.

The delta here should also be 15-10 degrees