That guy is powered by nuclear fusion, therefore the energy output he is able to fire is only equivalent to a fraction of that of a nuclear fusion.
Is that enough to hurt Cell?
Well it depends on how many hydrogen cores you fuse lol, but no it should not be enough.
Just to destroy the moon you would need 600 billion Tsar bombs
Ah I see. Thanks.
So 1 Tsar bomb = Ultron
600 Billion Tsar blowing at up the same time would = the destruction of one moon
One Cell = destroying a large planet with a single explosion
One Perfect Cell = Destroying a star with a single attack
One Super Perfect Cell = Destroying an entire Solar System where the blast ratio is starting at Earth.