billion floating point operations per second vs gigaflop

billion floating point operations per second and gigaflop both are nouns.

Word	Noun	Adjective	Verb	Adverb
billion floating point operations per second	Yes	No	No	No
gigaflop	Yes	No	No	No

As nouns, billion floating point operations per second and gigaflop are synonyms defined as:

billion floating point operations per second and gigaflop: a unit of measure for the calculating speed of a computer equal to one billion floating point operations per second.

Other synonyms of billion floating point operations per second include GFLOPS.

billion floating point operations per second (noun)	gigaflop (noun)
a unit of measure for the calculating speed of a computer equal to one billion floating point operations per second.	a unit of measure for the calculating speed of a computer equal to one billion floating point operations per second.