As we supposed when we reviewed the PS4 version of Assassin's Creed: Syndicate, you'll need a powerful PC if you want to play with all graphical options maxed out. To get a more or less steady 60 fps, we had to lower down the shadows to high (forget PCS and PCSS Ultra unless you don't mind frame drops), use MSAA2x+FXAA and HBAO+ (HBAO+ Ultra kills the framerate). If you want to see how the game performs with those settings, check out our four 1080p videos.
Note: Contrary to what Mirillis Action! says, some cutscenes runs at 30 fps. Those are obviously videos and not real time.
Rig we used to capture the game: i5 4670K @ 4.1 GHz, 8 Go RAM, Windows 10, SLI Nvidia Geforce GTX 970 Gigabyte OC. Today's drivers installed.