My time was with P3 and P103 engine. The G was I think P107, and AUP aircraft were P109. So probably better performance.
Not much.
TF30-3/103
10,750 lb (18,500 lb)
TF30-107
12,500 lb (20,350 lb)
TF30-109
12,000 lb (20,840 lb)
Too bad they weren't fitted with the engines from the F-111F...
TF30-100
15,000 lb (25,100 lb)
TF30-111
17,895 lb (25,111 lb)