Pretty good guess but, i have no idea either.
Looking at his profile, i dont see anything either way...
ability to manipulate his density, which at its lowest allows flight and a ghostly, phasing intangibility, and at its heaviest provides superhuman strength, immovability, and a diamond-hard near invulnerability. The Vision is capable of reaching a density ten times greater than that of depleted uranium. On one occasion, the Vision uses this extreme durability to render unconscious the villain Count Nefaria. The Vision often uses his ability to alter his density against foes, by phasing an intangible hand through them and then partially re-materializing it—a process he describes as "physical disruption." This effect typically causes great pain and results in incapacitation, as is the case when used against the Earth-712 version of the hero Hyperion. Being an artificial life-form/android of sorts, the Vision possesses multiple superhuman senses—as well as superhuman stamina, reflexes, speed, agility, and strength (even without being at high density).
He does seem a pretty formidable opponent though.