1440p is named QuadHD or QHD or 2.5k.In the gaming industry and modern displays, 2K is commonly referred to as 1440p as you damn well know.
You also damn well know that the person you originally responded to also meant 1440p when he said DL2 can't do 2K / 60
Let me get technical with you.. DL2 does not do 1440p @ 60fps on current gen consoles.
Get a life.
1080p is 2k.
And just a search on Google with 2.5k… first 2 results on mobile.
BTW 2k is a film maker industry alias… it is used to cameras with 2048 pixels in horizontal.
1080p is the standard 16:9 resolution in TVs that are close to that and so it is called 2k.
In 4:3 the 2k is 2048 x 1536.