And even that may be beaten by the larger cards, though it does seem to vary by a surprising amount between cards of the same size. Still, just another reason to want that 64 GB when it comes out, even if we must resort to importing (seriously don't screw this up SCEA/western retailers.)Generally speaking, the only difference in performance between physical and digital games is the loading times, with physical carts loading a little bit quicker due to a faster read speed.
Some of the descriptions of gameplay have me intrigued, I'll definitely to see if there's a demo and grab on sale or whatever.