Newer Technology today announced the NewerTech MAXPower G4/7448 Single and Dual Processor Upgrades starting at US$399 for Power Macintosh G4 AGP Graphics/Sawtooth, Gigabit Ethernet, Digital/Audio, or Quicksilver model computers. MAXPower G4/7448 Processor Upgrades utilize the latest generation Freescale 7448 processors and are 100% compatible with existing hardware, application software, and Mac OS 9.2.2 and Mac OS X 10.3.5 or later with no operating system modifications needed. By upgrading an existing PowerMac G4 AGP Graphics/Sawtooth, Gigabit Ethernet, Digital/Audio, or Quicksilver model with a MAXPower Processor Upgrade, users can enjoy faster performance better than the latest Intel based Macs while maintaining their original system investment, notes the company.