As different IQ tests were developed, each was given its own scoring system. Therefore, an IQ of 150 is a meaningless claim unless you know the actual test which was used.
Better to quote where your score came relative to the rest of the population. This also reduces the scorn I will feel for you.
It's also not uncommon to hear uninformed people discussing biology and using terms like 'more evolved' - often to mean 'more human like'. This little piece of hubris has perhaps received it's final nail in the coffin. As New Scientist reports, chimps are 'more evolved' than humans:
Zhang's team found that 233 chimp genes, compared with only 154 human ones, have been changed by selection since chimps and humans split from their common ancestor about 6 million years ago.
This result makes sense to biologists. The human population has been quite small compared to that of chimps until somewhat recently (in evolutionary terms), and we would expect genetic drift to have had more of an effect.