Disclosed is a heatsink device of video graphics array (VGA) and chipset. The main characteristic is making an integrated design for heatsink devices. Using a heatsink plate stacks on VGA and chipset instead of several ones as before. The heatsink plate has more heat dissipation area than that of conventional heatsink. The device also integrates other heat generated elements stacking below the heatsink plate to dissipating more heat, so as to increase heat dissipation effect of the heatsink plate. The device makes the operation of VGA and chipset more effectively and increases their life-time.