Hi! I have 2 1080p monitors in duplicate mode. I want to replace one of the two with a new 1440p monitor but keep them in duplicate mode. Will it work, or it will downscale the 1440p scale monitor to 1080p?
The resolutions will vary according to the monitor you're outputting to. In fact the resolution on them can be manipulated in the OS, under Right click desktop>Display settings, provided you're working with Windows 10.
For all intents and purposes, why are you going in duplicate mode? You're better off having extended mode for more real estate or best have two of the same displays, for the sake of uniformity.