CyberGraphX (CGX) is a graphics driver system for Amiga computers that provides Retargetable Graphics (RTG) support, allowing applications to use advanced graphics cards instead of the native Amiga chipset. Developed by Phase5 and later maintained by other developers, it became the standard for high-resolution and true-color display capabilities on Amiga systems with graphics card expansions. CyberGraphX enables modern screen resolutions, hardware acceleration, and improved color depths beyond the limitations of the original Amiga custom chips.