Question about a sword fight (spoilers, aMoL)

Gawyn fights demandred using the blood knives' rings. Previously we're told that the rings should make him damned near unstoppable (well, for a normal swordsman).

My question is this: how the hell can Galad almost stand toe to toe with the guy when Gawyn is probably almost as good as Galad, but Galad has no bloody magic rings?

I am probably missing something, but it seems like bulls hit to me, and that Dem was overpowered. I forget if it was Lan or Galad who said it, but one of them laments that Dem is well rested when they are not...how in hell can this be the case with him carving a battlefield up most days with his sa'angreal???? Or are we just meant to assume he's magically more than human?