if you mean on the graph, thats just done using a calc with the ratios from both box's buts its pretty accurate to real figures, and yes they really do make that much difference

with the 16v DPA box the torque is insane, wheel spins in 3rd in the dry are very doable

it was almost enough to put me off fast get offs etc as 90% of the time I'd be getting unwanted wheel spin. The ASD box from a diesel is still more than capable of putting the power down but feels a lot more controlled and you wont be wheel spinning half as much when you don't want to (but just as much when you do

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the gears in the ASD are taller than the DPA so the revs go further. For a realistic example when I go to work I usually sit somewhere between 70-80 on the m25, with the DPA I was at around 4000-4500 revs and when giving it a blast to 90 for a few seconds the engine would start screaming. With the ASD 70-80 sits happily just under 3000 revs and if I feel the need to put my foot down it never goes above 3500, much nicer to drive

and still feels just as quick on fast driving around town etc you just might find yourself needing to change down to overtake every now and then where you woudnt of needed to with the DPA, but tbh I still rarely find myself needing to change down
If you have the choice of any 02a box I would definitely recommend the diesel ASD box

I think its also popular to fit the ASD with a DPA 5th gear so it isnt so long but I dont know much about that, I've been more than happy with the standard ASD