Im not sure of all items but t start with, different feeder house shaft, Hi speed fan drive supposed,, Different air cleaner assembly, more horsepower, greenstar available I think, Different cornerpost, NOt sure about the rest. Basically its the same machine, just costs alot more for the extras.
shoe adjustments have sundial adjustment, cleaning shoe lights, FH dust fan, more cleaning fan rpm, dual display tach in cab, digital concave indicator, 13 bar concave, rear lighting package (might have been on 00 also)
this is the stuff you could buy from deere and add to a 00 series
tx, 80 bushel wheat, and 6000 lb milo mine stays right on the govenor. so i would say a chip is worth it for a 9600. now the 9650 sts----thats a diff story have 30% over box and can pull it down some, but nothing like beforer