Salesforce Marketing Cloud comes with 4 different editions:
Basic – Basic edition comes with the functionality of creating and sending personalized promotional emails.
Pro – Pro edition offers all the features of Basic + data segmentation, automation, predictive intelligence, and journey builder functionalities.
Corporate – Corporate edition offers all the features of Pro + cross-channel journey building functionalities along with predictive intelligence and einstein capabilities for personalized communication.
Enterprise – Enterprise edition offers all the features of Corporate + supports multiple business units which allows you to run marketing campaigns across different brands.
Learn more about the different Salesforce Marketing Cloud Editions here.