Editing Power Mac G4 (section)

===Graphite models===
[[File:Apple G4 400 MHz 6892.jpg|left|thumb|A "Graphite" Power Mac G4]]<!-- https://www.cnet.com/pictures/steve-jobs-mac-design-legacy-photos/6/ -->

The original Power Mac G4 was introduced at the Seybold conference in [[San Francisco]] on August 31, 1999.<ref>{{cite web|url=https://www.zdnet.com/article/apple-steps-up-to-g4-macs-5000095960/ | title = Apple steps up to G4 Macs |publisher=[[ZDNet]]}}</ref> While marketed as a single, unified product line, there were two variants of the machine. The first, cheaper configuration, the Power Macintosh G4 (PCI Graphics), served as an intermediate step between the Power Mac G3s and the G4 processors, used a G4 processor on a modified version of the Blue-and-white G3's logic board, making them very similar to their predecessors. The higher-end configuration, Power Mac G4 (AGP Graphics), featured a new logic board and faster memory bandwidth, and swapped the PCI graphics-card slot for a faster [[Advanced Graphics Port]] slot.{{sfn|Gore|1999|pp=90–91}}

Apple originally planned to ship the {{nowrap|500 MHz}} configuration in October 1999, but they were forced to postpone this because of poor yield of the CPUs. In response, Apple reduced the clock speed of the processor in each configuration by {{nowrap|50 MHz}} (making the options {{nowrap|350 MHz}}, {{nowrap|400 MHz}} and {{nowrap|450 MHz}}), which caused some controversy because they did not lower the original prices accordingly.<ref>{{cite web|url=http://www.macobserver.com/newreviews/bc/00/000221powermacg400/powermacg4400.html|title=The 400&nbsp;MHz PowerMac Reviewed|publisher=The Mac Observer|date=February 21, 2000|access-date=October 19, 2008}}</ref>

The early {{nowrap|400 MHz}} (later {{nowrap|350 MHz}}) [[Conventional PCI|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<ref>{{cite web|url=http://www.forevermac.com/1999/08/apple-mac-g4-powermac-400mhz-system/ |title=The Apple Power Macintosh G4 400&nbsp;MHz PCI |access-date=November 30, 2011 |publisher=Forevermac.com}}</ref> (minus the [[Apple Desktop Bus|ADB]] port), in a "graphite" colored case and with the new [[Motorola]] [[PowerPC]] 7400 (G4) CPU. The higher-speed models, code name "Sawtooth", used a greatly modified motherboard design with [[Accelerated Graphics Port|AGP]] 2x graphics (replacing the {{nowrap|66 MHz}} PCI slot).

The PCI variant was discontinued at the end of 1999.<ref name="PowerMacPCI">{{cite web | url = https://support.apple.com/kb/SP122?viewlocale=en_US&locale=en_US | title = Power Mac G4 (PCI Graphics) – Technical Specifications }}</ref><ref>{{Cite magazine |last=Read |first=David |date=April 2000 |title=Power Macintosh G4s |magazine=[[Macworld]] |page=38}}</ref>

The machines featured [[DVD-ROM]] drives as standard. The {{nowrap|400}} and {{nowrap|450 MHz}} versions had {{nowrap|100 [[Megabyte|MB]]}} [[Zip drive]]s as standard equipment, and as an option on the {{nowrap|350 MHz}} Sawtooth. This series had a {{nowrap|100 MHz}} [[system bus]] and four [[PC100]] [[SDRAM]] slots for up to {{nowrap|2 [[Gigabyte|GB]]}} of [[Random-access memory|RAM]] ({{nowrap|1.5 GB}} under [[Mac OS 9]]). The AGP Power Macs were the first to include an [[AirPort]] slot and [[Digital Visual Interface|DVI]] video port. The computers could house a total of three hard drives, two 128&nbsp;GB ATA hard drives and up to a single 20&nbsp;GB SCSI hard drive, with the installation of a SCSI card.

The {{nowrap|500 MHz}} version was reintroduced on February 16, 2000, accompanied by {{nowrap|400}} and {{nowrap|450 MHz}} models. [[DVD-RAM]] and Zip drives featured on these later {{nowrap|450 MHz}} and {{nowrap|500 MHz}} versions and were an option on the 400&nbsp;MHz.

The '''Power Mac G4 (Gigabit Ethernet)''' model was introduced at [[Macworld Expo]] [[New York City|New York]] on July 19, 2000; the new revision included dual-processor {{nowrap|450 MHz}} and {{nowrap|500 MHz}} versions, and a low-end single CPU {{nowrap|400 MHz}} model. It was also the first [[personal computer]] to include [[gigabit Ethernet]] as standard. Most people saw this revision as a stopgap release, because higher clocked G4s were not available; the G4's Motorola XPC107 "Grackle" PCI/Memory controller prevented the G4 from hitting speeds higher than {{nowrap|500 MHz}}.{{Citation needed|date=July 2008}} The dual {{nowrap|500 MHz}} models featured [[DVD-RAM]] optical drives. Zip drives were optional on all models. These models also introduced Apple's proprietary [[Apple Display Connector]] video port.