petaflop vs PFLOPS

petaflop and PFLOPS both are nouns.

Word	Noun	Adjective	Verb	Adverb
petaflop	Yes	No	No	No
PFLOPS	Yes	No	No	No

As nouns, petaflop and PFLOPS are synonyms defined as:

petaflop and PFLOPS: (computer science) a unit for measuring the speed of a computer system, equal to one quadrillion floating-point operations a second.

petaflop (noun)	PFLOPS (noun)
(computer science) a unit for measuring the speed of a computer system, equal to one quadrillion floating-point operations a second.	(computer science) a unit for measuring the speed of a computer system, equal to one quadrillion floating-point operations a second.