1920x1080 possibly at 30 FPS for the "High" preset (So Very High and Ultra likely exist as well, possibly beyond ultra if some options can be set higher than that preset allows for which some games do.) and then you also have the dynamic resolution and framerate target settings which likely takes into account the hardware set for "recommended" and meaning it can probably halve the display resolution if needed to match the set framerate target. On the other hand you can disable this upscaling feature entirely in the PC version but you might not be able to get full 60 FPS (Or 30, actually for recommended and 1080 it's probably a 60 FPS target or so I'd hope at least.) Syndicate and Unity works very similarly as I remember so it's when the user goes up to the highest settings that the game really starts straining even higher-end hardware, especially if you go 2560x1440 or above instead of 1920x1080 since the display resolution is still one of the most demanding settings in newer games. (For AC: Syndicate in particular the game had it's ultra quality HBAO+ and PCSS options which I think are outside of the regular ultra quality preset and will hit framerate hard even on high-end hardware.) Think the same also goes for other games using the Anvil Next engine such as For Honor or Wildlands which otherwise runs pretty respectably on a wide range of hardware, though then again I guess that's not too surprising if you take a game engine and push it beyond it's regular limits, speaking of which it's not the Anvil engine but I think Watch_Dogs 2 completely tanks if you enable everything for example. (Though it looks spectacular too, well as long as the game is stable ha ha.) Would have been nice with a third preset for "4K 30 FPS." or just 1080 Ultra to have that cleared up a bit but it would probably have approached a 1070 or 1080 GPU from Nvidia and it'd be Vega for AMD's side then to match. Closer to release maybe there will be some video streamers or tech sites doing more in-depth performance testing, I'm expecting Nvidia to pull ahead a bit compared to AMD as usual for Ubisoft games but I do not know if the game will have a range of Gameworks effects or not, probably more info to come in the weeks leading up to the PC versions release.