The bottom 25 percent of Harvard's 2013 class had an average composite score of 2,120, landing within the top 3 percent of overall SAT test takers. Using standard deviations of 15 and 16, this would translate to an IQ between 129 to 131, representing the top 3 percent of the population. The top 25 percent of the same class earned a composite score of 2,390, well inside the top 1 percent, which translates to IQ scores of 134 to 137 based on the same deviations. Source
