How powerful is the silver surfer?

Question

What are his powers?

Answer 1

Cut and pasted from the Marvel website

Powers
The Silver Surfer wields "the power cosmic," absorbing and manipulating the universe's ambient cosmic energies. He can augment his strength to incalculable levels, and is almost totally indestructible. He can navigate space, hyperspace and dimensional barriers, and can fly at near-limitless speeds on his board, entering hyperspace when he exceeds light speed. He has even proven capable of time travel on occasion. The Surfer does not require food, drink, air or sleep, sustained entirely by converting matter into energy. He is immune to temperature extremes and most radiation, and can survive in vacuum environments such as outer space and hyperspace. He can analyze and manipulate matter and energy, and restructure or animate matter at will, even transmuting elements. He can heal living beings (though he cannot raise the dead), and has proven capable of revitalizing or evolving organic life on a planet wide scale. He can alter the size of himself or of other matter, cast illusions, fire energy blasts, form and manipulate energy constructs, manipulate gravity, absorb and discharge most forms of energy, and phase through solid matter. His senses enable him to detect objects and energies light years away, and to perceive matter and energy in subatomic detail; he can even see through time, and with concentration can achieve limited perception of past and future events in his general vicinity. The Surfer has demonstrated limited telepathic ability on occasion, and has proven able to influence human emotion and sensation.
Abilities
Weapons
Paraphernalia
The Surfer's board is composed of the same impervious, cosmic-powered silvery material as its master's skin, and is mentally linked to the Surfer; it moves in response to his thoughts, even when he is not in physical contact with it. The board is almost totally indestructible, but on those rare occasions where it has been damaged or destroyed, the Surfer has been able to repair or even re-create it. The Surfer can attack opponents remotely by directing the board against them, and the board is capable of absorbing and imprisoning other beings, at least temporarily.

Answer 2

Known superhuman powers: The Silver Surfer can endow himself with Class 100 strength, enabling him to lift (press) over 100 tons. He possesses the Power Cosmic which he can use to generate powerful force blasts or to rearrange molecules. The Surfer travels on a "surfboard" which responds to his mental commands and is as indestructible as he is. He has a Cosmic Awareness which allows him to feel energy around him.

Answer 3

Well, you get the picture from the above two answers.

He's 'cosmically powerful', which is just another way of saying absurdly powerful.

One example is the instance when SS destroyed the Fantastic Four's Fantasticar. He apologized to Reed Richards, and with a wave of his hand, bathed the wreckage in a cosmic bolt of energy which caused all the atoms to resume the positions they had held a little while ago, undoing he damage. Reed's comment was "It's the most incredible display of molecular reconstruction I could ever have imagined!" Ben's comment, on the other hand, was "Cantcha ever just say 'Sheesh!' and let it go at that?"

I have to agree with Ben. SS is just too ridiculous. There are no challenges for him. And when he finally was able to leave Earth, because he never realized that Galactus put the limitation on his surfboard and not on him, you start to realize that the powers are of no use to someone who is too stupid to use them properly.