On the lowest 4K option, AA completely off, Hairworks off, all other settings on Ultra, I get ~35-45 FPS in most areas. Highest 4K option gives me ~10-30 FPS -- very choppy, overall.
This is on a:
Core i7-4790K, 4.00 GHz
EVGA GTX 980 ti, 6GB VRAM
16 GB GSkill DDR3 Gaming RAM, 2333 MHz
Samsung Evo SSD
Windows 7 x64
If you're looking to run something in 4K, I would really recommend another game. TW3 is playable at 1440p, but it's very taxing on the system. Performance can really bog down suddenly in detail-heavy areas. I stick with 1080p, myself. Smooth 60 FPS everywhere with every detail maxed and increased shadow detail through tweaks. Only minor stuttering which has nothing to do with the graphics load.
If you want to run this game smoothly in 4K, I recommend a top-of-the-line Falcon-Northwest Mach V system. (Should only set you back about $9,000 - $12,000...)
At 1440p, I believe the 980ti will sit around the 60fps mark. That means sometimes above 60fps and sometimes below 60fps, in the more taxing areas. I recommend getting 2 of them if you want the best possible graphics, but if you don't mind tinkering with the settings or if you have a g-sync screen then a single one should be enough.
This conversation is now taking me back. Does anyone remember Outcast? Voxel-based graphics with a wildly open world, mostly non-linear progression, fully-voiced dialogue, an OST by an actual, live, orchestra... YEARS ahead of it's time.
I had just graduated from university, got a job, and bought a new PC -- a custom-built Pentium III monster with frickin' 16 MB of RAM and an Nvidia Riva TNT2. Sucker set me back over $2,000. Had to save until almost December to afford it. (My girlfriend at the time thought I was, seriously, the biggest geek on the planet. After spending 2 grand on myself like that, it also wound up being a rather expensive Christmas to compensate...)
But when I finally got it home. I could play Outcast maxed-out at 512x384.
That was nothing compared to running X-Wing: Alliance with all effects on at 800x600!
I was still running my matrox millenium/voodoo 2 sli setup back then. With the cute external passthrough cable. I was such a fanboy back then, my first nvidia card was the 7800gtx and i haven't looked back since.
pfft who needs 32 bit color anyway heheheheh those were the days. Sure our phones have more gpu power than these things by a long shot, but every new game and every new card was guaranteed to blow away what came before. Then consoles happened. Still where we're at currently is quite impressive in its own right. I'm pretty sure witcher 3's level of detail matched only dreams from back then.. there's a certain sense of dreams coming true when walking around velen.. its gotten good enough to not be left wanting much.
Remember when quake 3 introduced bezier curves and good shadows?
I'm playing it with an Asus GTX 980 Ti Strix on 2560x1440, with Ultra Settings, Hairworks and all options enabled. The game runs great with 50+ fps, and will probably be even better when CDPR patch it to use Directx12.
Above 50 fps it runs smoothly and without any fps drop. I prefer to get better graphics with all options on and maxed than 60 fps, but everyone has his tastes.
The geforce experience profile recommend 4x MSAA but that's for the base 980Ti, it runs well here.