impact vs upshot

impact and upshot both are nouns.

Word	Noun	Adjective	Verb	Adverb
impact	Yes	No	Yes	No
upshot	Yes	No	No	No

As nouns, upshot is a hypernym of impact; that is, upshot is a word with a broader meaning than impact:

Other hypernyms of impact include consequence, effect, event, issue, outcome, result.

impact (noun)	upshot (noun)
influencing strongly	a phenomenon that follows and is caused by some previous phenomenon
the violent interaction of individuals or groups entering into combat
the striking of one body against another
a forceful consequence; a strong effect

impact (verb)	upshot (verb)
have an effect upon
press or wedge together; pack together