The Portfolio module showcases the portfolio posts.
It lets you choose between different layout styles, with margins or fullwidth layout, and in several columns options. You can also define for each portfolio module whether you want the items to open right there via Ajax or in a single post link. Hide or show the title for each item, the navigation filters and build your own list of items for each module (or bring them all or by categories).
Keep in mind that if you select to load the items on their own link (instead of the AJAX way) navigation will no longer be relative to the order the items appeared on the module, but on the natural WordPress order of “posts”.
Please note: the modules availability and their specific settings depend on each theme, not all themes include the same modules with the same settings.