Ashkenazi Jews have an average IQ around 110, Sephardim around 97 and Mizrahim around 92.
Comment: The Middle Eastern Jews are better described as Mizrahi, leaving Sephardic to describe the smaller group of Jews descended from the Spanish and Portuguese Jews expelled in the 1490′s or conversos who left the Iberian peninsula later. It is clear from population genetics studies that the narrowly defined Sephardic Jews have a similar genetic background to Ashkenazi Jews. The Mizrahi Jews are somewhat different. A large number of Mizrahi Jews from Yemen appear to be descended primarily from local south Arabian converts to Judaism.