So with Max TDP set to 95 on my 9900k. Undervolt of -100 mv in the bios. Turboboost power max 95W. Getting 86 with prime95. Vcore is 1.225 V. However I don't know why but my cores only go up 3500. Maybe I'm hitting a power limit. I'm happy with this as I boost up to 4700 during gaming or other applications.