The difference is AMD's CPU's don't go above the TPD rating, how they get to that TDP rating is questionable given they don't include the IO die in it, the CCD/s are rated to 105 watts, they are hard locked to that unless you turn BPO on.
5800X clocks to 4.6Ghz in R23 at 105 watts CCD, the 5950X about 4Ghz at 105 watts for both CCD's combined.
The IO die uses about 15 to 25 watts.
Yea they do, my 5950x can do up to 130w in cinebench