GIGABYTE Radeon (part number GV-AR64DG) Graphics Processing Unit for desktop market segment is based on ATI Radeon The GPU is produced using nm GIGABYTE Radeon GV-AP64D-H. 64 MB, bit,». Gigabyte GV-R ATI Graphics Driver for Vista/Windows 7, MB Gigabyte GV-AP64D ATI Graphics Driver fro XP, MB / Windows 2K. In order to assist in the use of this product, Gigabyte has categorized Graphics Chip. Maker. Model Name. ATi. Gigabyte. GV-RX30SD.