Following the long awaited release of the feature rich patch 1.07 for The Witcher 3: Wild Hunt, a number of technical difficulties with the game has been reported by Digital Foundry. Through extensive comparison tests, it actually seems that the new patch hurts the framerate on both the Xbox One and PS4 version of the game.
Regarding the Xbox One version of the patch, Digital Foundry had this to say:
"Essentially, gameplay on Xbox One now appears to rely on a similar double-buffer v-sync set-up to the PS4 game, locking its frame-rate to 20fps during these lulls in performance," Digital Foundry explained. "This means that the reading on our graph is consistently lower on patch 1.07 as compared to 1.05, where it was free to waver between 20-30fps freely. On a matching route through the bog, frame-rate can be up to 8fps slower on the latest version of the game."
The PS4 version of the game still seems to be the one with the worst performance:
>"On top of that, even traveling through simple countryside roads (or Novigrad's central city) continues to produce single-frame stutters every few seconds--a rough point we had hoped would be ironed out by now," "Overall, little has improved in PS4's bid for a smooth 30fps reading here, and in fact, the tail-end of our Novigrad test shows dips to 25fps as we hit the marketplace--something not seen on the last patch."
The PC version of The Witcher 3: Wild Hunt seems unaffected by patch 1.07. CD Projekt RED is currently investigating.