Results 1 - 47 of 47 - Get the best deal for Apple PowerMac PowerPC G5 Desktops from the largest online selection at Browse your favorite brands. The Power Mac G5 is a series of personal computers designed, manufactured, and sold by Apple Computer, Inc. from to as part of the Power Mac series. When introduced, it was the most powerful computer in Apple's Macintosh lineup, and was marketed by the company as the world's first bit desktop e date: June 23, For sale is an Apple Power Mac G5 ghz with GB Ram for spare or repairs. Works fine but had hard drive failure. So with a new HD would work great again.