U7n or U8k

It might be too early for the real comparisons to be out, but anyone have the scoop on if the newer U7n is better or the same as the older U8k. Looks like I can ge the U8k for about $300 less than the U7n. Does the U7n have anything worth the extra $300? More dimming zones? Better processor? Or should I just get the U8k? I’m looking at the 75” size btw.