Difference between 1650 torque and 2050 torque clutch

I was wondering what the the physical difference is between lower torque capacity to high torque capacity clutchs ?
Is it just all in the disc design or do the high capacity set ups have heavier spring pressure plates with more clamp load ?

 

I am looking at stepping up to a higher rated capacity clutch because with the tune I’m running in my 14 liter ddec 5 series 60 I can slip the clutch on a hill when I’m in high gear.
It only slips when I am loaded and on a long hill and I tip in the throttle in high gear and the boost shoots up to 45 or 50#s and then she cuts loose.

 

The clutch that’s in there is a 1650 easy pedal but I think it’s a six pad.
That’s why I was wondering where the higher capacity clutch’s get there holding power from?

 

Yes holds perfectly down hill fully loaded and full Jake on.