panasonic lumix zs80 zs70 tz90 tz95

I'm looking into buying one of the newest Lumix with EVF. The main difference between the ZS70 and ZS80 (TZ90-TZ95) is the viewfinder resolution: 2330k vs 1166k dots. I have no idea how these viewfinders look, so perhaps someone can tell if the increase resolution is helpful or just marketing...