What I gathered from the tow guide is F250 HCTTP is 10,800 GVWR and F350 is 11,400 GVWR. They are both rated to tow 20k conventional and F250 19,100 5th wheel with F350 22,000. This is comparing crew cab diesel with 160” wheel base.
My ‘21 Lariat Ultimate, CC, 6.7, 160” with HCTTP has a payload of 2754.
If you haven’t seen this yet it’s pretty cool if you have a vin:
https://fordfleetlive.com/#/VinCalculator