What is the difference between the John Deere 410R and 400R?

Here is how the John Deere 410R and John Deere 400R compare on John Deere's published specifications:

• Horsepower: John Deere 410R 310 hp vs John Deere 400R 326 hp
• Wheelbase: John Deere 410R 169.3 in. vs John Deere 400R 169.3 in.