Does airplay only do 1080p?

[x-evil-x]

I noticed the screen isn't full screen also on my 4k tv. Only way to get 4k is with a cable? Airplay only does 1080p from a 15" MacBook pro?

 

[amarcus]

Apple TV is limited 1080p - future models will hopefully address this

4K output today requires a cable

 

[x-evil-x]

Apple TV is limited 1080p - future models will hopefully address this

4K output today requires a cable

oh durrr.
Any idea why its not full screen. Its close but not full screen