Here is another batch of GTX 1080 videos with this time Rise of the Tomb Raider and Assassin's Creed: Syndicate. As you'll see, maxing out these games does not always guarantee a steady framerate, especially when you start to go above 1080p. If you don't mind a few drops here and there, you can enjoy Lara's latest adventure at 1440p, but the rise in resolution (or video settings) is much more impactful on Ubisoft's title. Again, it means you will have to choose between image fidelity or resolution if what you care the most (and you should) is framerate.
Note: The settings at the beginning of the first TR video are maxed out at 1440p with SMAA. The settings at the beginning of the second are the same as those at the end of the first.