Installation
Dedicated graphics cards are not bound to the motherboard, and therefore most are removable, replaceable, or upgradable. They are installed in an expansion slot and connected to the motherboard. On the other hand, an integrated graphics card cannot be changed without buying a new motherboard with a better chip, as they are bound to the motherboard.
Also, if an integrated graphics card get damaged or ceases to function, a new motherboard must be purchased to replace it, as it is bound to the motherboard and cannot be removed or replaced. On the other hand, if there is a problem with a dedicated graphics card, it can be replaced by installing another.
Drivers for the hardware are installed through software downloaded or provided by the manufacturer. Each brand of graphics hardware has its own drivers that are required for the hardware to run appropriately.
Read more about this topic: Graphics Hardware