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Needless to say, there are some basic differences in image quality that need knocking on the head right away. Chief among them is the hot topic of internal resolution, where we determine that the Xbox One code is indeed running at 1280x720. If this is set in stone for release - as is likely - the Microsoft version is poised to give us the most aliasing of the two next-gen platforms by a noticeable degree, and is only a stone's throw from the sub-720p resolutions of current-gen releases. On the other hand, the PS4 version delivers a whopping 1600x900 resolution in all modes, giving it a 50 per cent lead in output pixels overall. As well as cutting down on jagged edges, this reduces the amount of pixel shimmer we see in motion on complex shaders or thin geometry, with distant power lines, scaffolding and other elements with sub-pixel elements creating unwanted flickering on Xbox One.
But the differences we saw don't just stop at resolution. Both versions are treated to post-processing anti-aliasing too, seemingly equivalent to the refined, high setting on PC. However, this doesn't tell the whole story. As you may notice in our screengrabs, the actual results on PS4 lack the corresponding level of crystal clarity we'd expect of such a significant resolution boost. This should surely be a home run for Sony's console, but what is likely to be a software-based upscale to 1080p delivers less-than-stellar returns, and for better or worse leaves the Xbox One with an often crisper looking, albeit much more aliased image.
Having moved ahead in terms of image quality, there's no doubt that Sony's new platform comes out on top overall in the performance metrics too. This is best demonstrated in matching sequences, such as a cut-scene on a Shanghai river where it commands a constant 2-4fps lead, and likewise during the tearing apart of a battleship. In terms of gameplay, the gap widens further during the cannister explosion on the Fishing in Baku stage, with a disparity at well above these numbers - the PS4 regaining 60fps much faster than the fluctuating Xbox One code. We see occasional XO wins in like-for-like testing too, but in our single-player tests, it is clearly the PS4 code that is in the ascendant.
On the merits of what we've seen so far, Battlefield 4 is already set to be a formidable launch window effort from DICE. Our observations so far reveal a clear gap in fidelity between PC and PS4, and again to Xbox One, but sub-pixel break-up aside, based on what we've seen so far, the Microsoft console manages to hold up despite the undeniable, quantifiably worse metrics in terms of both resolution and frame-rate.
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