Here is how the John Deere 6M 115 and John Deere 6R 120 compare on John Deere's published specifications:
- Horsepower: John Deere 6M 115 114 hp vs John Deere 6R 120 118 hp
- Pto horsepower: John Deere 6M 115 88 hp vs John Deere 6R 120 91 hp
- Weight: John Deere 6M 115 13779 lb. vs John Deere 6R 120 14330 lb.
- Fuel capacity: John Deere 6M 115 46.2 gal. vs John Deere 6R 120 52.6 gal.
- Wheelbase: John Deere 6M 115 94.5 in. vs John Deere 6R 120 102 in.