Summary
Photographic Memory is the ability to remember and recall experiences and events inhumanly well. Users can remember great volumes of information, in greater detail and for much longer than the average human, they can read books, listen to song lyrics, encounter people or experience events and recall a vast deal of the details of their experience. In addition, it takes less effort to recall the information they encounter, and they can remember it for longer without having to strain. Although this ability is often shown in higher intellectuals, it is not only limited to smart people. A person with otherwise average and even potentially below-average intelligence could still possess this specific mental ability.
It should also not be assumed that a high intellectual person automatically has this ability without evidence to back it up, whether it has been stated or explicitly shown.