The ATI FireGL X3-256 is a professional graphics card developed by ATI Technologies (which was later acquired by AMD) aimed at workstations and high-performance computing tasks like CAD (Computer-Aided Design), 3D rendering, and other graphics-intensive applications. The FireGL series was designed to offer better performance and stability for professional applications compared to consumer-level ATI Radeon cards.

The Windows driver for the ATI FireGL X3-256 is software that allows Windows operating systems to communicate with and utilize the hardware of the FireGL X3-256 graphics card. Installing the proper driver ensures the card works correctly with your system, providing better performance and compatibility with graphical applications.