Terrence Jones contributed 16 points for the Wildcats (23-1, 9-0 SEC), who rolled to their 15th straight win and remained unbeaten since their Dec. 10 loss to Indiana.
Davis and Lamb were especially potent in the first half when they helped Kentucky post a 52-25 lead at the break.
The Gamecocks (9-13, 1-7) struggled from the field, shooting only 30.5 percent from the floor.
Damien Leonard led South Carolina with 19 points.
Celebrity Families of 2014 [PHOTOS]