Steve,
Here is my experience (not with latest Intel processor).
I replaced my old i7-4810MQ with an i7-10700H (not a K-series as it’s a laptop processor).
Not much difference, as you can see in our dedicated PC configurations comparison table (see the thread linked below).
Please note that a minimum level of tuning is mandatory. At the very least:
- Set processor and all the cores to max performances.
- Disable core-parking “feature”. There are utilities to do this easily.
- The other GlitchFree hints.