working memory vs remembering

working memory and remembering both are nouns.

Word	Noun	Adjective	Verb	Adverb
working memory	Yes	No	No	No
remembering	Yes	No	No	No

As nouns, remembering is a hypernym of working memory; that is, remembering is a word with a broader meaning than working memory:

working memory: memory for intermediate results that must be held during thinking
remembering: the cognitive processes whereby past experience is remembered

Other hypernyms of working memory include memory.

working memory (noun)	remembering (noun)
memory for intermediate results that must be held during thinking	the cognitive processes whereby past experience is remembered