Ark Survival Evolved is finally out on consoles, and Digital Foundry have analysed the release build:

Basically the game has two modes on PS4 and Pro; detail (higher res, lower framerate) and normal. (Lower res, higher framerate)

At normal, PS4 runs at 640p and Pro at 720p. In detail mode, PS4 is 720p and Pro is 1080p. Xbone One doesn't offer this option and is locked to 720p.

This is confusing....lol

I'm guessing the One version has worse detail so it can accomplish 720p? Or it's just more optimized lol

Not quite
Instead, Ark defaults to 720p on the Microsoft platform with v-sync permanently disabled, meaning constant, unavoidable tearing for the entirety of the duration. Until the release of the X update at least, it puts the Xbox One version at the bottom of the pack, with an experience that feels rough and unpolished.

Not that base ps4 is much better
But with that said, base PlayStation 4 performance overall just isn't good enough. Whether you're playing in normal or detail mode (frame-rates are actually very similar, despite the big difference in resolution), detailed jungle scenes drop well below 30fps. For a 720p title, let alone a circa 640p game, it's actually quite remarkable to see performance drop so low bearing in mind that most games these days hand in smoother frame-rates at full 1080p resolution. The adaptive sync mode helps here in getting the most out of the engine (albeit at the expense of tearing) but it's still far from optimal.

Pro still struggles to maintain 1080p30, with a choice between running at 720p with wildly fluctating frame rates (15/20/30/60), or 1080p30 with screen tearing when it drops below.

Perhaps XBox One X can maintain 1080p30 with this mess.

Yeah, the details are lower, and the game looks better on ps4. It's a pretty rough game on every console, though as expected, the pro is a great deal better than the ps4 or one and the x is going to be a better rez than the pro (1440 instead of 1080). The X also has a higher framerate mode at 1080p. Still though, yikes, I can't think of a more poorly optimized, well selling multiplatform game this gen off the top of my head. 

Destiny 2 is a nearly locked 1080p 30 on the base PS4 and this game can't hold 1080p 30 on the Pro...

Damn. I heard this game didn't run well on most good pc's either

Can't say I am surprised considering the performance on pc

Sounds low. Never played the game myself though, so I don't know if it's poor optimization, of if the game really is that demanding.

Does anyone here know the technical reason why the stats are so poor?

is this the same mob that charged dlc for a game in early access?