Does any one know power of ultimate gohan

Ultimate gohan isn't as strong as a ssj4 the last guy who said that is a total FANBOY with no life.... that's all there is to it......ultimate gohan is as strong as a ssj3..in the buu saga ssj3 goku and ultimate gohan were tied and in the movie 13 ssj3 goku single handedly defeated hirudegarn while ultimate gohan could not hit or block any of his attacks and at the end of DBZ ssj3 goku became the strongest after that 10 year training to fight kid buus reincarnation...and he trained him for 5 years...it took goku 15 years after ssj3 to beocme a ssj4