The SAPPHIRE AMD Radeon HD 6770 1GB GDDR5 PCIe x16 CrossFire graphics card is a high-performance GPU designed for gaming and multimedia applications. With a chipset manufactured by AMD, this card offers 1 GB of GDDR5 memory and features connectors for DisplayPort, DVI, and HDMI displays. The card is CrossFire ready and includes a cooling component with a fan and heatsink for optimal performance. Compatible with PCI Express x16 slots, this SAPPHIRE graphics card delivers smooth and immersive graphics for a seamless user experience.works perfect, boots and fans work great