What is the PTO horsepower difference between the John Deere 7R 350 and 8R 370 Tractor?

The John Deere 7R 350 has a PTO horsepower of 260 hp and the John Deere 8R 370 Tractor has a PTO horsepower of 310 hp, a difference of 50 hp. The John Deere 8R 370 Tractor has the higher PTO horsepower.