Not everything was quite as it seems at the Xbox One X conference according to Digital Foundry...
Forza Motorsport 7, Super Lucky's Tale and Assassin's Creed Origins were running on Scorpio dev kit hardware.
Assassin's Creed Origins? We got an extended gameplay demo running on Xbox One X hardware, again promising 4K ultra HD and high dynamic range rendering support - though Ubisoft has since confirmed the utilisation of both checkerboarding and dynamic resolution. It certainly looks like an established current-gen engine scaled up to 4K with select embellishments, and traditionally, the Assassin's Creed titles have run at a native 900p.
Titles we had naturally assumed were running on Xbox One X during the briefing materialised on other, non-X hardware. Crackdown 3 was shown running on PC, while Sea of Thieves was represented on Xbox One S - and at this point, we started to wonder how much of Microsoft's blockbuster 4K conference was actually based on Xbox One X software. During the media briefing, at no point were we told we were looking at PC versions in a presser meant to herald the arrival of a true 4K console. On site, a Rare representative told Digital Foundry that while native 4K is the team's intention with Sea of Thieves, it's not 100 per cent definite as development kits had only turned up at the studio in the last month. This means that the extended 4K gameplay demo at the media briefing was likely running on PC.
That said, while the messaging is razor sharp in its targeting, under scrutiny, Microsoft is being a touch vague about its definition of what 4K actually is, saying that games flagged as such at the media briefing have a 2160p framebuffer output, "including native 4K, checkerboarding and dynamic resolution". Using language like 'including' essentially means that anything goes and strictly speaking, the same could be said for any PS4 Pro title with a higher resolution mode - even those running at 1440p or even lower. We expect better from Xbox One X's higher performance GPU of course, but the point is that the wording here gives developers far more wiggle room in rendering resolutions than the actual phrase '4K ultra HD' may suggest.
http://www.eurogamer.net/articles/digit ... o-see-moreSeems like a bit of PS4 Pro-style trickery will end up being employed with some third party efforts.