You'd have to powerscale him to Reeve's Superman, as he had no combat showings in that film. Apart from that if he inherits the feats from the prior films Doomsday probably can't even react to his speed
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
Returns was strong enough to lift an island of kryptonite and had ftl speed. I think he could take a freshly created Doomsday, who hasn't absorbed and adapted yet.