http://www.eurogamer.net/articles/digitalfoundry-2014-the-evil-within-face-off
Verdict:
Is this the end for id Tech 5? As it stands there aren't any other products in the pipeline with the engine behind it - that we're aware of, at least. Its utilisation has proven to be an interesting experiment and the fact that it produced two consoles games capable of holding a solid 60fps is impressive. However, The Evil Within clearly shows that it's not right for every development environment. The team at Tango Gameworks has made some impressive changes, with id's engine pushed in brand new directions, but we can't feel the underlying technology is ill at ease with the demands placed upon it.
Does The Evil Within manage to rise above its performance issues and live up to its potential? Well, yes, it's a solid and interesting game. Of the two console builds, PS4 gets the nod - the higher resolution is welcome and the game simulation is more closely linked to the renderer, meaning less stutter than the Xbox One version. However, while improved over the Microsoft console, the PS4 game still feels highly under-optimised. Indeed, as things stand, with the possible exception of Thief, The Evil Within probably has more performance issues than any other title we've tested on the new wave of consoles - and that's a real shame, as there's a remarkably good game here let down by its surrounding technology.
That being the case, those looking for something closer to the best possible experience should really opt for the PC version, provided you have the requisite hardware to at least match and exceed PS4 performance - a modern Core i3 processor matched with something like a Radeon R9 270 or a GeForce GTX 660 should get you to 1080p30 with a consistent performance level. Liberating the game from its overbearing borders and narrow field of view improves the experience, plus there's the opportunity to scale beyond 1080p for those who own higher-resolution displays. But even here, it's clear there are profound optimisation issues. We like to think of the PC as the platform capable of powering its way to the best possible gameplay experience, with 60fps gameplay a key component, but for now at least that's completely off the table, and that's a real shame.