4k is nothing more than the double resolution from 1080p
> can you tell a difference over a retina display?
A 21" Retina Display iMac would be 4k (the current 21" iMac is 1920x1080). A 27" Retina Display iMac would be way beyond 4k (it would have a 5120x2880 display)
> Aren't they called retina because that's the most your eye can see?
That's more of a marketing moniker and incomplete. The original point/qualifier is that they fall beyond the eye's angular resolution so you can't "see" individual pixels anymore. That's not "the most your eyes can see" though, many arthropods create details & colors through nanometric structures.
4k is nothing more than the double resolution from 1080p
> can you tell a difference over a retina display?
A 21" Retina Display iMac would be 4k (the current 21" iMac is 1920x1080). A 27" Retina Display iMac would be way beyond 4k (it would have a 5120x2880 display)
> Aren't they called retina because that's the most your eye can see?
That's more of a marketing moniker and incomplete. The original point/qualifier is that they fall beyond the eye's angular resolution so you can't "see" individual pixels anymore. That's not "the most your eyes can see" though, many arthropods create details & colors through nanometric structures.