Difference between Rp2 &Rp3 for media playback

I am thinking of changing to an RP3 from an RP2 that I use to play back movies etc from my NAS using LibreELEC and KODI

I was wondering how much difference there would be between the RP2 and RP3 especially playing HD audio etc at 1080P and is it worth the change.

Are there any files the RP3 can play that the RP2 would not be able to play.