super vs top-notch

super is a noun but top-notch is not a noun.

Word	Noun	Adjective	Verb	Adverb
super	Yes	Yes	No	Yes
top-notch	No	Yes	No	No

As adjectives, super and top-notch are synonyms defined as:

Other synonyms of super include A-one, ace, crack, first-rate, tiptop, topnotch, tops.

super (noun)	top-notch (noun)
a caretaker for an apartment house; represents the owner as janitor and rent collector

super (adjective)	top-notch (adjective)
including more than a specified category	of the highest quality
extremely large
of the highest quality

super (adverb)	top-notch (adverb)
to an extreme degree