The sapphire hd 5450 graphic cards offer the most features and functionality in their class with complete directx 11 support and the worldacirceurotrades most advanced graphics display features and technologies the hd 5450 series is designed to give you stunning high definition entertainment from your pc whether blu rayhd dvd discs or other hd sources microsoft directx 11 support ati stream technology 40nm process technology pci express 21 support microsoft windows 7 support enhanc