3/4 Ton vs 1 Ton

Can someone explain this to me?

2017 F350
Front GAWR: 5,600
Rear GAWR: 6,340
Combined GAWR: 11,940
GVWR: 11,500





My 2014 2500
Front GAWR: 6,000
Rear GAWR: 6,500
Combined GAWR: 12,500
GVWR: 10,000