Porky, when it comes to just grinding it through, the 8820 can do more because it is wider. We harvest wheat, barley, canola and peas. When the threshing is easy and not a lot of trash, the 8820 walks away. When there is a lot of trash to separate from seed, the 9500 does a good job in the hopper. I find that, overall, in what we harvest, the 9500 is smaller in capacity. Rosco