It must also be noted that low profile graphics cards can also be used in standard ATX cases using the full-size bracket that comes along with them, but a full-sized graphics card cannot fit in a slim or low-profile case.
Having said that, a graphics card with a full-sized bracket can be wider than other graphics cards because of the extended heatsink and the shroud design, and may not be able to fit in all ATX cases. On the other hand, full-sized cards with full-size brackets and PCB width are used in standard ATX cases with full-size expansion slots. it has a shorter width (69mm or 70mm) and is designed to fit in a low profile or slim PC cases. A low profile graphics card is slimmer with a half-height bracket design i.e.
When we talk about the width then there are generally two types of graphics cards: Low Profile (LP) and Full Profile or Full Slot graphics cards.