17seconds :
According to this bit from Bethesda's Fallout 4 graphics page, consoles and other non-Nvidia systems might be challenged with some of the more advanced graphics settings. The mention of "hardware tessellation" and volumetric lighting is a big red flag for AMD cards and the AMD based consoles.
Quote:
"As always, our world features fully dynamic time of day and weather. To create that volumetric light spilling across the scene (sometimes called “god rays”) we worked with our friends at NVIDIA, who’ve we worked with dating back to Morrowind’s cutting-edge water. The technique used here runs on the GPU and leverages hardware tessellation. It’s beautiful in motion, and it adds atmospheric depth to the irradiated air of the Wasteland."
https://bethesda.net/#en/events/game/the-graphics-technology-of-fallout-4/2015/11/04/45
right here is the worst of it
"new cloth simulation system makes cloth, hair, and vegetation blow in the wind"
if i remember nvidia's cloth sim right, this was an absolute nightmare on how taxing it is, which explains the 4790 as a recommended spec.
the guy i was watching stream couldn't push the game consistently to 60fps constantly dipping sub 30 on a Intel Core i7-5820K and 980 in sli... he did a test doing it with one card and it was stuttering bad, even without profiles sli made it stutter less.
he also said it was on ultra, there was not one bit of the game that looked like those screenshots, so that's where the i have no idea what to believe, he said he got a copy through a friend at a review site, so if that's true i will assume the specs he said are real, because its likely not the first time he got a free AAA game.
the question comes in when you ask did he really have it on ultra...
dude said he was playing at 1080p, so if he didn't have it on ultra and the game already plays that badly... thats kind of damning on bethesda and gameworks in general.
i really want this guy to be a lying sack of crap. either lying about performance, or lying about settings, because what i saw was fairly good, i wouldnt say its good, but its not bad, and if he lied about performance i would be happy with the game looking like i saw...
im probably going to end up setting hardware limits on what tessellation can do in game because of the witcher 3 crap... i really hope nvidia does one of their massive breakdowns on graphics settings with screenshots, those help me so much in figuring out what settings i will keep high and what i will turn off because i so hate reloading games trying to troubleshoot crap... takes forever.