The highest display resolution of the UN65F9000 is 4K Ultra HD. That's over four times the display resolution of a Full HD television, which is the most frequently found display resolution. 4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.
A 4K Ultra HD HD type is actually the best display resolution amongst all large TVs that have been on the market for more than two years.
Amongst similar types of TV the worst display resolution is Full HD.
4K Ultra HD TVs have a resolution of 3840 x 2160 pixels.