The ATI Rage Mobility AGP is a graphics processing unit (GPU) designed by ATI Technologies (now part of AMD). It was commonly used in laptops and mobile systems during the late 1990s and early 2000s. The AGP (Accelerated Graphics Port) interface refers to the type of connection between the GPU and the computer's motherboard, which was commonly used for graphics cards before the transition to PCIe (PCI Express) interfaces.