What is the difference between the John Deere 6105E Cab and 6R 110?

Here is how the John Deere 6105E Cab and John Deere 6R 110 compare on John Deere's published specifications:

• Horsepower: John Deere 6105E Cab 105 hp vs John Deere 6R 110 108 hp
• Pto horsepower: John Deere 6105E Cab 89 hp vs John Deere 6R 110 83 hp
• Weight: John Deere 6105E Cab 10240 lb. vs John Deere 6R 110 14330 lb.
• Fuel capacity: John Deere 6105E Cab 44.4 gal. vs John Deere 6R 110 52.6 gal.