savior vs benefactor

savior and benefactor both are nouns.

Word	Noun	Adjective	Verb	Adverb
savior	Yes	No	No	No
benefactor	Yes	No	No	No

As nouns, benefactor is a hypernym of savior; that is, benefactor is a word with a broader meaning than savior:

savior: a person who rescues you from harm or danger
benefactor: a person who helps people or institutions (especially with financial help)

Other hypernyms of savior include helper.

savior (noun)	benefactor (noun)
a person who rescues you from harm or danger	a person who helps people or institutions (especially with financial help)