Solved: AMD Radeon HD 8750M is disabled - HP Support Community - 5588589
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 with Windows 8 Professional Edition - Mac Palace
AMD ATI Mobility Radeon HD 4650 - NotebookCheck.net Tech
HP ProBook 450 G1 - i5-3230M · AMD Radeon HD 8750M (2GB DDR3) · 15.6”, HD (1366 x 768), TN · 750GB HDD, 5400 rpm · 4GB DDR3, 1600 MHz | LaptopMedia.com