harvest

What are the bushels per hour/ acers per hour averages for a John Deere 9500 combine (6 row corn head/ 25 foot bean head) VS John Deere 7720 (6 row corn head/ 20 foot bean head) ?

Looking at getting a John Deere 9400 Combine. Was wondering if anyone owns one or has owned one and knows about how much it can harvest in an hour. Some info, would have a 6 row corn head and 30 foot bean head. Trying to find out how much one would harvest in hour in beans and corn. Either...