Seems to have been written by a 5 year old, and the others I've seen site the ubiquitous 'anonymous' sources.
No doubt the PS4 is the faster unit but by how much remains to be seen, and how that impacts the end user is unknown.
I personally think running at a slightly reduced resolution will be barely noticeable. I'd take slight fidelity reduction over maintaining smooth frame rate, on either system tbh.