Sorry, I thought you might be interested in seeing the completion of Einstein's work on the "Theory of Everything" considering your interest in understanding what defines genius. His name is synonymous with genius because of his great abilities (which I also have due to our evolutionary, neurobiological link to Neanderthals). I am also quite certain the modern phychological diagnosis of this condition is Aspergers Syndrome.
I can tell you that IQ tests are quite worthless when it comes to measuring intelligence. There is the intelligence of mathematicians and engineers that can solve problems with known solutions, and then there is the intelligence that is able to figure out solutions to problems previously unknown. I think problem-solving skills are much more important than knowing large volumes of data. It is the ability to make connections that other people can't make (in which details can really matter). I can program a computer to solve problems at much greater speed, efficiency, accuracy, and lower cost of existing knowledge. However, I can't program one to solve the mysteries of the universe.
I can tell you that I am a slow reader and not a fast test-taker, I would probably only score above average on an IQ test, and I have absolutely no college. However, I correctly determined how the universe worked theoretically, then developed a new equation to prove it, from which I read to unravel all the mysteries of the universe. I can prove the equation through Dimensional Analysis. I know how energy correlates to length (of which I actually defined what is length), and I can even mathematically prove that time is a dimension. All that is important because it helps mankind not only technologically, but also to understand what really makes a genus such as Einstein.
You may have a different opinion on what makes a genus. I only know of my intellectual gift and of Einstein's. Einstein spent 30 years working on the Theory of Everything. I am 30 years old and finished it in 1.5 years. The only thing lacking is fully expanding my equation into the "Equation of Everything," which I would gladly do is I had the time, money, and environment conducive to finishing my research. Eccentric geniuses are overbalanced in certain areas and deficient in others. I am audacious because I have a passionate persuit of my work, such an incredible knowledge of the universe, and exceptional accomplishments. That gives me great strength to fight for recognition of my work for the benefit of mankind. If I lacked such confidence and boldness then I certainly couldn't overcome the obstacles for which I face in the politics of science. Nothing is above corruption, not even science. I have gone through intense mental and emotional pain and suffering that made me into what I have become (which my theories were a convenient distraction). It defined my philosophy: "Strength of Mind and Strength of Heart; Question Everything and Trust No-one." That allowed me to see the errors made in science and accomplish more than I ever thought possible!