Replaced my old 1800X, but kept my motherboard (ASUS Prime X370-Pro).
Previously, it was not possible to get over 2933MHz stable for my G.Skill 3600MHz CL16.
Suddenly, the memory works according to spec without the slightest instability.
Incredibly awesome to be able to use a two year old motherboard and make it work so well!
Single core is up and sniffing at 4.5GHz, allcore ticking it at 4.2-4.25GHz. The plug is cooled by an NH-D15. Idle 30-40 degrees, Prime95 pushes up temp in about 75 degrees.
The difference between 1800X and 3800X is considerable. Suddenly you can use your 1080Ti to the full. Games etc. floats on perfectly.
The processor is worth every penny!