Duluth, GA – Elizabeth Williams had 20 points and 11 rebounds 62.
Richa Jackson had 17 points and Chelsea Gray added 16 points for the Blue Devils (15-2, 6-0 ACC), who have won nine straight.
Sasha Goodlett had a game-high 25 points while Tyaunna Marshall added 13 points and eight rebounds for the Yellow Jackets (13-6, 3-3), who have lost three of five.
Duke held a six-point lead following the first half and shot 56 percent in the second half to pull away while holding Georgia Tech to just 25.9 percent shooting.