This is a good one sir. I saw this. Only thing is no Full array and local dimming for higher contrast.
X800 is IPS panel. Contrast is poor with or without local dimming. Local dimming is not the biggest of your problems if you select X8000. Screen will be grey in the night where it should be black.
Check comparison between X750 and X800. Check the contrast and black uniformity sections. X750 is cheaper and has better contrast since it is VA.