The is a dual-core desktop processor from the Richland architecture, featuring integrated Radeon HD 7480D graphics . Because this hardware belongs to a legacy product generation, finding and installing the correct driver is essential for maintaining system stability and video performance. Official Driver Download Options
To get the most reliable performance, you should download drivers directly from the AMD Support Portal . A4-4020 with Radeon™ HD 7480D Drivers and Downloads amd a4-4020 apu with radeon(tm) hd graphics driver download