The early 400 MHz (later 350 MHz) PCI-based version used a motherboard identical to the one used in Power Macintosh G3 (Blue and White) computers including the use of Zero Insertion Force (ZIF) processors sockets (minus the ADB port), in a "graphite" colored case and with the new Motorola PowerPC 7400 (G4) CPU. In response, Apple reduced the clock speed of the processor in each configuration by 50 MHz (making the options 350 MHz, 400 MHz and 450 MHz), which caused some controversy because they did not lower the original prices accordingly. This is due to the color scheme of the case, which officially debuted with the Power Mac G4 (predating the graphite iMac DV Special Edition by 2 months).Īpple originally planned to ship the 500 MHz configuration in October 1999, but they were forced to postpone this because of poor yield of the CPUs. Colloquially, this first generation of Power Mac G4 is referred to as "Graphite". There were two variants, officially titled Power Mac G4 (AGP Graphics) with 400, 450, and 500 MHz configurations available, and Power Mac G4 (PCI Graphics), with 350 MHz and 400 MHz configurations. The original Power Mac G4 was introduced at the Seybold conference in San Francisco on August 31, 1999. Rear view of a "Graphite" Power Mac G4, showing the available ports The G4 and its enclosure were retired with the introduction of the Power Mac G5. The enclosure style introduced with the Power Macintosh G3 (Blue and White) was retained through the entire five-year production run of the Power Mac G4, albeit with significant changes to match Apple's evolving industrial design and to accommodate increasing cooling needs. This was the first existing Macintosh product to be officially shortened as "Mac", and is the last Mac able to boot into classic Mac OS. Built around the PowerPC G4 series of microprocessors, the Power Mac G4 was marketed by Apple as the first "personal supercomputers", reaching speeds of 4 to 20 gigaFLOPS. from 1999 to 2004 as part of the Power Macintosh line. The Power Mac G4 is a series of personal computers designed, manufactured, and sold by Apple Computer, Inc. 350 MHz – 1.42 GHz (Up to 2 GHz processors through 3rd-party upgrades.)
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