1440p monitor goes to 3620x2036

[Renevance]

Hello all,
I got my Acer Predator XB271hu last month and it's been decent. I haven't been blown away by the features even though I'm upgrading from a 1080p 24" 60hz TN monitor. But that's besides the point. Lately after using websites like http://www.lagom.nl/lcd-test/sharpness.php to calibrate my monitor, I went to check my native resolution. It was at 2560x1440p, however, I noticed there was an option further up of 3620x2036p. How is this possible, if my monitor is 1440p?

 

[10tacle]

I assume you are looking in the Nvidia control panel and are seeing the GeForce Dynamic Super Resolution (DSR) upscale option. https://www.geforce.com/hardware/technology/dsr/technology

Now if you have an AMD card, I have no idea.

 

[Renevance]

Oh, it is DSR. I completely forgot it existed. I don't know why it just suddenly started showing now. Thanks!