Solved: AMD Radeon HD 8750M is disabled - HP Support Community - 5588589
System board (motherboard) - Features the AMD A76M FCH chipset and AMD Radeon HD 8750M graphics (switchable discrete) - For use in AMD models with Windows 8 Professional and with 1GB discrete
How to: Configure AMD switchable graphics and overclock your AMD Radeon HD 8750M | Overclock.net
AMD Releases Full Product Specifications For Radeon HD 8000M Series
AMD Radeon HD 8750M Specs | TechPowerUp GPU Database
System board (motherboard) - Features the Mobile Intel HM76 chipset with AMD Radeon HD 8750M 2GB discrete graphics - Includes replacement thermal material - For use in models without Windows 8 - Mac Palace