The impact factor was originally developed by Eugene Garfield, the founder of Institute of Scientific Information, which is now a part of Clarivate Analytics.
Clarivate Analytics only provides this Impact Factor. Scopus has no impact factor concept; they provide Cite Score, SNIP, and SJR.
The Impact Factor is a measure of the frequency with which the average article in a journal has been cited in a particular year or period. It is used to measure the importance or rank of a journal by calculating the times it has been cited by other articles.
Scopus is a citation database that provides quality measures for each title. It provides CiteScore and SJR, which are similar to Impact Factor.
Scopus is citation database that gives quality measure for each title while impact factor reflects the yearly average number of citation of articles published in the last two years in a given journal.