GB vs gibibyte

GB and gibibyte both are nouns.

Word	Noun	Adjective	Verb	Adverb
GB	Yes	No	No	No
gibibyte	Yes	No	No	No

As nouns, GB and gibibyte are synonyms defined as:

GB and gibibyte: a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes

Other synonyms of GB include G, GiB, gigabyte.

GB (noun)	gibibyte (noun)
an island comprising England and Scotland and Wales	a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes
a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes
a highly toxic chemical nerve agent that inhibits the activity of cholinesterase