Pinot noir vs Pinot grape

Pinot noir and Pinot grape both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pinot noir	Yes	No	No	No
Pinot grape	Yes	No	No	No

As nouns, Pinot grape is a hypernym of Pinot noir; that is, Pinot grape is a word with a broader meaning than Pinot noir:

Pinot noir: red wine grape; grown especially in California for making wines resembling those from Burgundy, France
Pinot grape: any of several purple or white wine grapes used especially for Burgundies and champagnes

Other hypernyms of Pinot noir include Pinot.

Pinot noir (noun)	Pinot grape (noun)
dry red California table wine made from purple Pinot grapes	any of several purple or white wine grapes used especially for Burgundies and champagnes
red wine grape; grown especially in California for making wines resembling those from Burgundy, France