tableau vs vista

tableau and vista both are nouns.

Word	Noun	Adjective	Verb	Adverb
tableau	Yes	No	No	No
vista	Yes	No	No	No

As nouns, vista is a hypernym of tableau; that is, vista is a word with a broader meaning than tableau:

Other hypernyms of tableau include aspect, panorama, prospect, scene, view.

tableau (noun)	vista (noun)
any dramatic scene	the visual percept of a region
a group of people attractively arranged (as if in a painting)