In that case I'd prefer 3840x2880. It's still missing 25% comparatively speaking.
All the losses from browser header, footer, OS status bars, browser chrome or IDE widgets are at the top and bottom. Making that 16:9 letter box skinnier.
I'd prefer more lines to be productive - to display the whole email without scrolling, or the whole method definition or half the article on a site etc. When I want to watch a full res HD movie I'll take black bars top and bottom.