I have one from Cabelas little (2 lbs per minute)that's 5 or 6 years old and I am surprised how much meat it can grind compared to a big cabelas grinder (8 lbs per minute).
I grind it, run it through the sausage stuffer and dirrectly into a bag all in one shot. The little grinder was getting 1 lb every 2 minutes. The bigger grinder got 1 lb every 1:45 minutes.
I really thought that the big one would run off and leave the little one, but it made about a 15 second per pound difference.
I was running both of them and had sharpened the blades on both of them, so it must be something to do with how the big grinder handles back pressure.
The little grinder cleaned up so much faster and was easier to handle, so I think the time works out to be the same.