The ATI Radeon Xpress 1100 is an older integrated graphics solution used primarily in laptops and desktop computers. It is part of the ATI Radeon Xpress family of graphics chipsets. This chipset was designed to provide basic 3D graphics acceleration, video decoding, and improved display performance compared to fully integrated graphics solutions.

The ATI Radeon Xpress 1100 Windows driver is software that enables your computer's operating system (e.g., Windows) to communicate with and utilize the graphics hardware in the Radeon Xpress 1100 chipset. Installing the correct driver ensures that the system can properly use the GPU to render images, videos, and handle display functions.