I'm not sure how to account for this.IIRC, around the release of the FuryX, a lot of people did testing of CU utilisation on GCN and they found out that it requires proportionally more bandwidth to get proper utilisation and reach similar performance like its Maxwell cousins. Its straight bandwidth is not 'necessarily' always a great comparison against NV cards... especially since it is dedicated bandwidth there.
ROPS are of course one thought process. The other is CPU, in which higher settings could impact the load. Outside of that, it's hard to see where PS4 Pro would offer a substaintial improvement aside from maybe RPM? But we know it's employed on a few titles like Wolf2, but we aren't seeing anything significant that we can attribute it to. Unless RPM and Low precision blending go together like peanut butter and jam.