UN75F7100 vs UN75F8000; UN65F7100 vs UN65F8000; UN60F7100 vs UN60F8000; UN55F7100 vs UN55F8000

The local dimming is arguably the most significant distinction between the Samsung F8000 and F7100, since only the former one has it. The benefit of this technique manifests itself in the contrast enhancements, as well as in the improved screen uniformity (because dimming of the light emitting diodes makes any minor imperfections (provided there are any to begin with) of the backlight less pronounced, thus less visible). Of course, the differences between the two models don't end here:

• The F8000 utilizes more advanced software technique (Micro Dimming Ultimate) for dividing the screen into many zones, and then each zone receiving (independently from the others) enhancements for contrast, color and sharpness. The F7100, on the other hand, has the basic version of the Micro Dimming technology, where the number of zones is only half of what the flagship set has, and the applied enhancements are limited to the contrast-only, so the improvement in the picture quality is somewhat modest in case of the F7100. That said, the black levels are comparable (and very good on both) because either has a VA (Vertical Alignment) type of panel.
• Despite both having panels with 240Hz native refresh rate, the top-tier receives higher clear motion index rating of 1200 vs 720 CMR on the step-down model. The more capable image processor (and possibly the more finely-tuned scanning of the backlight) gives the F8000 an upper-hand when it comes to watching content with extremely fast-motion, such as in some sports. But apart from the aforementioned scenario, in which the F7100 can exhibit a touch more blurring, its handling of fast moving images is done quite well thanks to the 240Hz panel.
• The Smart TV platform is identical on both, but the higher-end set uses quad core processor, so for example, navigating through the five panels in the Smart Hub  is faster in comparison to the F7100, which has a dual core processor. What's more - the F8000 can further improve its performance and add new software features in the future via an upgrade, which is possible thanks to the Smart Evolution Kit (sold separately). Its opponent doesn't support this kit, so it cannot be upgraded.
• The F800 has a built-in camera, which allows you to use various hand gestures for controlling the TV out-of-the-box. If you want to utilize the Motion Control with the lower-end set, you will need to get a compatible camera as an optional accessory, since there isn't an integrated one.
• The flagship set has two sub-woofers, thus the total audio power output is two times higher compared to its rival: 40W vs 20W.