Tajh Boyd threw for 344 yards and tied a school record with five touchdown passes for the second straight week to help the 10th-ranked Tigers beat Duke 56-20 on Saturday night. DeAndre Hopkins caught three of those TD tosses in the opening quarter for the Tigers (8-1, 5-1 ACC), who scored 42 points by halftime and rolled to their fifth straight win — all by at least 14 points. Sammy Watkins and Martavis Bryant also had first-half touchdown catches, helping Clemson rack up nearly 500 yards by halftime and 718 for the game. The win moved Clemson into a tie with No. 9 Florida State atop the ACC’s Atlantic Division, though the Seminoles beat the Tigers in September for the head-to-head tiebreaker in the division race to reach the ACC title game in Charlotte on Dec. 1.