10700-K, playing around with single core turbo overclocks -- 53, 53, 52, 52, 52, 52, 51, 50, 1.295v fixed, 47x Ring, LLC High on a Gigabyte Z490 Vision D. The 53x bump helped push the single core score to 629.
Running a few hours of P95 26.6 blended, forcing an hour or two on 112/112, running Forza Horizon 4 for a couple hours and trying 30 mins of R20 or R23 in loops don't cause any blue screen or WHEA errors. Not true 24-hour test by any stretch, but these little short runs initially look good.
R20 single core gets 542.
I tried 55, 55, 54, 54, 53, 53, 52, 50 at 1.35v fixed, LLC High, AVX 0. It blue-screened at 1.31v, so I bumped it to 1.35v. Haven't tried any stability tests whatsoever, but it got through CPU-Z.
Windows didn't like 57, 57, 56, 56, 1.35v. I wonder why...
It's probably better overall if I went to all core 51x. Settling at the moment with 53x4, 52x2, 51x1, 50x1 and testing stability at 1.295v.