Uncharted 4 doesn't just "stretch" the image. it's rendering at 1440p! That's almost double the pixels of 1080p!
Yea but it's just streching the 1440P image into 4K without using any of the advanced techniques that some other developers are doing, DF describing U4's image as softer than other titles who are using proper upscale and that's disappointing and not the kimd of support I'm expecting to see.