High School: Benton was a three-year contributor at Memphis University School and helped the Owls win the 2009 state title. His senior season, he helped his team reach the semifinal round of the Tennessee Division II - Class AA state playoffs before they fell to the eventual state champions and finished with an 8-4 overall record. During the year, Memphis University School averaged more than 27 points per game and scored 35 or more points six times. In his junior year, the Owls advanced to the quarterfinal round of the state playoffs and concluded the season with a 7-4 overall mark while averaging 30 points per game. As a sophomore, he was part of a state championship team that rolled through the season with a perfect 13-0 record and an average of more than 38 points per game. He elected to walk on at Arkansas despite scholarship offers from multiple schools, including Memphis. He was coached at Memphis University School by Bobby Alston.