kakashi at peak chakra and goku during the fight with radditz at peak but radditz isnt in it
Kakashi's still screwed in this match.
Goku would still win easily. He is still much much faster, stronger and more powerful than any character in the entire Naruto series, even at the beginning of Dragon Ball Z. Even Master Roshi was powerful enough to destroy a moon, Goku at the time he fought Raditz was much much stronger. Kakashi isn't fast enough to react to Goku spamming out moon-busting attacks. Hell, hardly anybody in Naruto can survive Pain's attack that destroyed the village, Goku was tanking those kinds of attacks when he was a teenager.