It's early days with our testing so far, but some changes and improvements are in play. Texture filtering is improved, though the base assets - including art quality - look to be the same as the game running on the standard PlayStation 4. Curiously though, ambient occlusion looks as though it's pared back in some of the scenes we tested - something we intend to investigate in further depth. Initial tests also suggest that some of The Witcher 3's most challenging areas - such as Crookback Bog - actually run slower than base hardware, which in turn was a touch slower than the Pro running the old code under boost mode.
Finally, rounding off this very early look at the patch 1.51, the good news is that we can confirm that full super-sampling is in effect for PlayStation 4 Pro users with 1080p displays, meaning pristine-looking anti-aliasing, while the enhanced texture filtering also scales down nicely too.
We're still playing the game and running through our benchmark areas so we suspect there'll be much more detail to unearth, but right now, performance dips aside, the Witcher 4 on PS4 Pro does indeed deliver an improved presentation overall, though perhaps not quite the flawless upgrade users may have hoped for. We'll have a full analysis and video breakdown as soon as we can.