4k and 8k would be more, regardless of how big the screen is, look at the quality of an apple 15" retina display that is supposedly res wise between 1080 and 4k, yet the quality simply due to the resolution is a huge difference when you just compare it to just 1920x1080, even on something like a 15" display. I'd be looking at 4k TV's but then again the question you have to ask, does anything support it yet?