latte vs caffe latte

latte and caffe latte both are nouns.

Word	Noun	Adjective	Verb	Adverb
latte	Yes	No	No	No
caffe latte	Yes	No	No	No

As nouns, latte and caffe latte are synonyms defined as:

latte and caffe latte: strong espresso coffee with a topping of frothed steamed milk

latte (noun)	caffe latte (noun)
strong espresso coffee with a topping of frothed steamed milk	strong espresso coffee with a topping of frothed steamed milk