Sonnet Technologies today announced the new Encore/ZIF G4 1GHz model, the fastest processor upgrade available for Power Macintosh models with “ZIF” (Zero Insertion Force) processor sockets, according to the press release. This upgrade utilizes the 745X series of Motorola G4 chips, has 256K L2 and 1MB L3 cache. The first shipping version of the new Encore/ZIF G4 1GHz, priced at US$699.95, is compatible with Beige G3 Power Macintosh models. Announcements of additional speeds and further compatibility with Blue & White and G4 PCI Graphics systems are expected in the coming weeks.