For impressive graphics processing power, the ATI Radeon HD 5770 with 1GB of GDDR5 memory is a great choice for visual creative, scientific, & technical applications. ATI Radeon HD 5770
Includes:: three video ports: two mini display Ports & one dual-link DVI port. This means that you can connect the 24-inch Apple LED cinema display plus another mini Display Port-based display, & a DVI-based display such as the 30-inch Apple cinema HD display.