The Wolfpack scored on eight straight possessions midway through the second half to turn a 34-31 deficit into a 49-37 lead with 9:05 left. A three-point play by Marc Lewis extended the lead to 54-39 with 5:31 remaining.
Lewis and Mark Davis added 11 points each for N.C. State. Georgia Tech was led by Martice Moore with 22 points and Travis Best with 17.
Yellow Jackets center Malcolm Mackey, who was averaging 16.4 points, picked up his fourth foul early in the second half and tTC finished with a season-low four points.
Thompson and McCuller were an effective inside-outside combination in the first half, combining to score 22 points as the Wolfpack took a 29-27 halftime lead.
The first half was close throughout, with five ties and six lead changes.
Thompson took advantage of early foul trouble by Mackey, who picked up his second foul with 12:47 left and the score tied at 7. With Mackey out, Thompson scored seven of N.C. State's next nine points.
Thompson's free throw with 7:12 left cut the Tech lead to 17-16.
A three-pointer by Curtis Marshall put the Wolfpack ahead 19-17, but the Yellow Jackets scored six straight points to take a 23-19 lead on a 10-footer by James Forrest with 4:47 left in the first half.