The Jupiter 80 has one advantage: it has 256 voice polyphony, Integra and Jupiter 50 have the standard 128 voice.

And there is one disadvantage of the Integra which keeps some people from buying it: it has a ridiculous 64 storage locations for "studio sets" (= performances or 'combinations' in Korg terminology). The number of storage locations for user tones is sufficient, but if you need more combinations of tones for long playlists you have to find an external solution, e.g. controlling tone changes via IPAD "Set List Maker" or, in my case, by the MOXF master mode.