Update from VGTech
The PS4 version uses a dynamic resolution with the lowest pixel count found being 960x972 and the highest pixel count found being 1920x1080. The PS4 Pro version uses a dynamic resolution with the lowest pixel count found being 1280x1296 and the highest pixel count found being 2560x1440. The PS4 Pro version does downsample when outputting at 1080p.
https://www.youtube.com/watch?v=2xntkUGquEg&t=122s
PS4 and Ps4 pro being stated as 60FPS by the OP is pretty bad :P digital foundry points out the xbox one is the worst version but none of the versions are stable 60, maybe the xbox one x will fix it, else we have the PC

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