We reported not long ago that Ryse was going to be running at 1600x900 and then upscaled to 1920x1080, which looks to now be fully confirmed by German developer, Crytek.
What is weirder, is that the studio seems fine with it, and so does CEO and President of Crytek, Cevat Yerli. Yerli has confirmed that Ryse renders at 1600x900, and upscales to 1080p. He specifically said on his Twitter account: "#Ryse there is not one single downgrade compared to E3, promised! Only UPGRADES in the final push towards finalling phase! Its FULL HD XP!"
It does get worse, as Yerli then tweets "#Ryse runs at 1600x900 for best perf&res, we apply our upscaler for AA, framebuffer native 1080p. SAME as E3 XboxOne! No change, No compromise!" Well, I'd consider a full 320 pixels wide and 180 pixels high missing, a huge compromise. Yerli believes this is "native 1080p" which scares me... as it is far from running at native res if there's upscalers involved.