I've got a powerful laptop with 4 cores i7, Nvidia 1070, 16gigs of ram and win 10 x64. The game runs in 1080 on ultra with stable 60 fps. But sometimes (no pattern) game freezes. There is no reason for it since it's installed on SSD. All other games work just perfect. PUBG, Ghost Recon Wildlands, Assassin's Creed Origins.
Just take a look, several timings:
13 sec
https://youtu.be/i4UL8Ok8ocs?t=13s
1 min 1 sec
https://youtu.be/i4UL8Ok8ocs?t=1m1s
3 min 19 sec
https://youtu.be/i4UL8Ok8ocs?t=3m19s
Hate to break it to you, but everyone has this stuttering. It's the Dunia engine. It's been present since Far Cry 3, although with that game they did finally address it. In Far Cry 4, it was never addressed. To this day, driving around is a stuttering mess.
The problem is, many gamers have come to accept this type of stutter (render/texture streaming stuttering) in open world games. Either that, or they game at 60 fps or less, where it is much less pronounced. For those of us who have 120/144hz displays and try to have an entirely smooth experience, no dice.
For Ubisoft customer support to feign ignorance of this problem is just insulting. They know it's there. It was there in the previous game, and went unaddressed. Don't believe others who say it is your setup. It isn't. It's the game and/or game engine, it needs patching, and who knows if that will ever happen, but don't get your hopes up, as past (Far Cry 4) is prologue.
And for reference, here are my settings, which cannot run this game without the stuttering (which is present at all in-game settings levels):
Intel i7 7700K at 4.8GHz
32GB DDR4 RAM
GTX 1080 Ti SLI (running single card, as SLI scaling is terrible and it's somewhat smoother on one card)
Windows 10 x64
500 GB NVME SSD (Game is installed on this drive)
It runs at between 88-120 fps, which most would say is "completely smooth." However, the stuttering is noticeable, even if dropping a couple fps. More relevant, the frame times during these stutters spike from 10 ms to 40 ms (see image linked below). This is what some gamers have "learned" to accept, and what the rest of us call attention to, sometimes seemingly in a vacuum.
https://imgur.com/a/myFsL