As expected, Apple today unveiled the new PowerMac G5, featuring the world’s first 64-bit desktop processor (up to 2GHz) and the industry’s first 1 GHz front-side bus. Powered by the PowerPC G5 processor designed by IBM and Apple, the Power Mac G5 is the first personal computer to utilize 64-bit processing technology for unprecedented memory expansion (up to 8GB). The new PowerMac is the world’s fastest personal computer, according to Apple. It features a new anodized aluminum alloy enclosure built around four independently controlled thermal zones for advanced airflow management, with fans in each zone that are individually controlled based on a sophisticated combination of thermal and power monitoring, resulting in the Power Mac G5 running two times quieter than the previous Power Mac G4.