Faster and more powerful than ever, iMac is now equipped with seventh-generation Intel Core i5 processors and the latest high-performance graphics Graphics that render you speechless The Retina display shines even more vividly on the new iMac. With one billion colors and 500 nits of brightness, graphics leap off the screen in a whole new light Two Thunderbolt 3 (USB-C) ports come standard on all iMac models, each delivering up to 40Gb/s data transfer for external drives and cameras and twice the bandwidth for video and display connectivity