Sony does not have any notebook with the high density display of Apple's, or the one Google is trying. 1080p is not a synonym of a high density (PPI) display.
Macbook Pro (retina): 2560x1600 at 227 pixels per inch.
1080p: 1920x1080 (assuming 16:9)
Really can't compare. I do not mean I have seen all, but no display I have seen (on notebooks) gets near Apple's "retina display." None. Google is trying with the Pixel.
You left out the DPI number for the 11" 1080p display.
Let me try:
Retina iPad: 264 PPI
13" Retina Macbook Pro: 227 PPI
10.6" Surface Pro: 208 PPI
11" Vaio Duo 11: 190 PPI
There is a difference but it is minor and I disagree with your statements you can't compare or that it doesn't even "get near". You'll be hitting the point of diminishing returns.
