I have a question I posed in the skylake X thread also. Is it a limitation, feature, or something in the mobo that software reports my cores smashing around from 1.2ghz up to 4.5ghz during benchmark and stresstests?
This is 7820x with Asus X299 TUF Mark 1. Cooled with h115i and stay around 55-65 for the duration of the benchmarks. GPU is Titan X Pascal and PSU is ax1200i (so no power issues I believe).
For instance, I can't pass the 3dmark stresstest, I always get 86% and my core speeds are jumping around rather than holding constant at Turbo 2 or 3.
Firestrike Ultra gives me the correct score in line with Titan Xs, but again the core speeds fluctuate wildly.
My i7 3820, once started, would hold its turbo speeds during the demos.