The ATI Radeon IGP 320M is an integrated graphics processor (IGP) from ATI (now part of AMD) designed for use in laptops and other systems with onboard graphics. This chip was part of ATI's Radeon 320M series and supports basic graphics acceleration for older laptops or desktops, offering capabilities for 2D and 3D graphics, video acceleration, and basic gaming.

The ATI Radeon IGP 320M Windows driver is the software that enables Windows operating systems to properly communicate with the integrated graphics hardware. It provides the necessary functionality to display graphics, run multimedia applications, and ensure that your display works correctly. Without the correct driver, your system may either default to basic graphics with limited features or may not recognize the graphics processor at all.