Depends on your video adaptor/card, but nvidia supports Dynamic Super Resolution (DSR), and AMD supports Virtual Super Resolution, both of which essentially all

Depends on your video adaptor/card, but nvidia supports Dynamic Super Resolution (DSR), and AMD supports Virtual Super Resolution, both of which essentially allow you to bump your res beyond the max. In the nvidia control panel, have a look in '3D settings' > 'Manage 3D settings' > 'DSR - Factors' and you can change the resolution multiplier. (Not sure why it's in 3D settings, as it applies to the desktop along with anything else).