perceptiveness vs perception

perceptiveness and perception both are nouns.

Word	Noun	Adjective	Verb	Adverb
perceptiveness	Yes	No	No	No
perception	Yes	No	No	No

As nouns, perception is a hypernym of perceptiveness; that is, perception is a word with a broader meaning than perceptiveness:

perceptiveness (noun)	perception (noun)
the quality of insight and sympathetic understanding	becoming aware of something via the senses
delicate discrimination (especially of esthetic values)	the process of perceiving
perception of that which is obscure	the representation of what is perceived; basic component in the formation of a concept
a feeling of understanding	a way of conceiving something
	knowledge gained by perceiving