So just getting started OCing the 6900K. Focusing on gaming performance first, so HT is disabled and I'm not using AVX stress tests, so mostly OCCT linpack non-AVX and lyra2re altcoin mining on the CPU while the GPUs heat everything up mining at the same time.
As of right now I can push 4.3 on all cores at 1.275...not bad, I guess? 4.4 was unstable as high as 1.35, and I'm not really willing to go above that so 4.3 it is.
I gotta say though, this AVX offset is the best thing ever. I can set the offset to 4 (3 is unstable) and it'll magically downclock and survive heavy encoding and stress tests. With haswell/skylake I'd have to tune my OC to survive AVX stress tests just to cover the occasional random AVX workload. With the offset I can just shrug it off and focus on tuning for what I actually do 99% of the time.
Also the temperature differential between broadwell-e and skylake is still shocking. On the same h115i, would hover at 90C encoding at 1.35V, pushing only like 100W through the CPU. The 6900K doesn't even break 60C while it's pushing 150W+ through the CPU. I knew the mainstream TIM was bad, but damn its such an extreme difference. It's way cooler than even my old 5820K, even with 33% more cores.
Gonna see what I can squeeze out of per-core OCing next.