What is the difference between Average Effective Clock and Core Effective Clocks (avg)?

[Tillio]

Pretty much what the title asks. I've seen on AMD Zen 4 these two values are identical, but on Intel these two values are very similar, but slightly different.

Related, how does calculating average effective clock on Intel big/little architectures like Alder Lake and Raptor Lake handled in this calculation?

 

[Martin]

It's calculated the same way. In both cases it's the arithmetical average of all core clocks.
If there's a difference, then it might be due to a different sampling time or interval.