The goal to have as comprehensive as possible comparison require us to start by pointing out the difference between the Micro Dimming Ultimate which can be found on the F8000 and the Pro version that is on the step-down F7500 series. The former one has approximately twice as many zones as the latter one. That being said, in both cases there are three enhancements that are being applied to each zone individually: for contrast, color and sharpness. What that means in practical terms is the flagship model has more granular control over the different portions of the picture its displaying (due to the greater number of zones) so in some tricky situations such as showing fine shadow details it should perform better but only when were comparing sets of the same size.
Another feature that sets them apart is the Precision Black. It is exclusive to the top-tier and it represents an actual dimming of the light emitting diodes of the backlight as opposed to a software tweaking of the picture controls (aka Micro Dimming). What you should keep in mind though, is that due to being an edge-lit, the LEDs are placed on the side(s) of the panel so while theyre dimmed, its not done locally on, or rather behind, the screen. Under these circumstances, this technique can only be beneficial to you if youre watching a lot of movies with black bars.
F8000 also has a slight edge over its lower-end counterpart in terms of depicting fast moving scenes. The Clear Motion Rate on it is 1200 while on the F7500 is 960. However, the native refresh rate of the panel is the same on both: 240Hz.
