2k Usually refers to 2560x1440.
1920x1080 is 1080p.
It doesn't make a whole lot of sense, but that's how it is.
1920x1080 is 1080p.
It doesn't make a whole lot of sense, but that's how it is.
[EDIT] I mean, of course, 1080p's also not typically called that, yet another resolution is, but labeling 1440p 2k is especially far off.
> (the p is progressive, vs i for interlaced)
> 4k, 2k refer to the number of columns of pixels
> 2560×1440 is both 2.5k and 1440p, and 3840×2160 is both 4k and 2160p.
These parts I did not misunderstand.
> and those terms come from cinema and visual effects (and originally means 4096 and 2048 pixels wide)
OK that part I didn't know, or at least had forgotten—which are effectively the same thing, either way.
> 1920×1080 is both 2k and 1080p
Wikipedia suggests that in this particular case (unlike with 4k) application of "2k" to resolutions other than the original cinema resolution (2048x1080) is unusual; moreover, I was responding to a commenter's usage of "2k" as synonymous with "1440p", which seemed especially odd to me.