Editing Power Mac G5 (section)

== Product revision history ==

* [[File:Apple GeForce 6800 Ultra DDL Mac.jpg|alt=Apple Nvidia GeForce 6800 Ultra DDL 256MB AGP for Power Mac G5 M9593G/A|thumb|Apple Nvidia GeForce 6800 Ultra DDL 256MB AGP for Power Mac G5 M9593G/A]]2003 June: Initial release at speeds of Single 1.6, Single 1.8, Dual 2.0&nbsp;GHz.
* 2003 November: Dual 1.8 replaces Single 1.8&nbsp;GHz; price reduction on Single 1.6&nbsp;GHz.
* 2004 June: 90&nbsp;nm Dual 1.8, Dual 2.0 and Dual 2.5&nbsp;GHz replace all previous models. The 2.5&nbsp;GHz model is notable as the first major PC with [[Water cooling#Computer usage|liquid cooling]] included as stock.
* 2004 October: A new Single 1.8 reintroduced, with a slower, 600&nbsp;MHz HyperTransport, PCI bus, based upon the [[iMac G5]]'s architecture (U3lite and Shasta chips). Apple's official name for this machine is "Power Mac G5 (Late 2004)".
* 2005 April: CPU speed increased: Dual 2.5&nbsp;GHz → Dual 2.7&nbsp;GHz (PCI-X, [[Water cooling#Computer usage|LC]]), Dual 2.0&nbsp;GHz → Dual 2.3&nbsp;GHz (PCI-X), Dual 1.8&nbsp;GHz → Dual 2.0&nbsp;GHz (PCI). Newly introduced features were the 16x dual-layer SuperDrives across the line and increased storage, up to 800&nbsp;GB for the higher-end models. The 1.8&nbsp;GHz Single was not modified.
* 2005 June–July: The Single 1.8 model was discontinued in the United States and Europe.
* 2005 October: Shift to dual-core processors: Dual 2.0&nbsp;GHz → DC 2.0&nbsp;GHz, Dual 2.3&nbsp;GHz → DC 2.3&nbsp;GHz, Dual 2.7&nbsp;GHz → Dual DC 2.5&nbsp;GHz (termed a Quad Power Mac G5, with four CPU execution cores and more reliable{{Citation needed|reason=Seems unreliable w/ leakage having destroyed many CPUs|date=April 2023}} [[Water cooling#Computer usage|liquid cooling]]), all with DDR2 memory, and [[PCI Express]] expansion in place of [[PCI-X]].<ref>{{cite web|date=October 19, 2005|title=Apple Introduces Power Mac G5 Quad & Power Mac G5 Dual|url=https://www.apple.com/newsroom/2005/10/19Apple-Introduces-Power-Mac-G5-Quad-Power-Mac-G5-Dual/|access-date=June 27, 2009|publisher=[[Apple Inc.]]|archive-date=October 9, 2017|archive-url=https://web.archive.org/web/20171009094135/https://www.apple.com/newsroom/2005/10/19Apple-Introduces-Power-Mac-G5-Quad-Power-Mac-G5-Dual/|url-status=live}}</ref><ref>{{cite web |url=http://www.computerworld.com/softwaretopics/os/macos/story/0,10801,106263,00.html |title=The Power Mac G5 Quad: Seat belt not included |access-date=June 27, 2008 |last=Kossovsky |first=Yuval |date=November 16, 2005 |work=[[Computerworld]] |publisher=[[International Data Group]] |archive-date=June 29, 2008 |archive-url=https://web.archive.org/web/20080629231527/http://www.computerworld.com/softwaretopics/os/macos/story/0,10801,106263,00.html |url-status=live }}</ref><ref>{{cite web |url=http://www.macworld.com/article/48071/2005/11/quadreview.html |title=Power Mac G5 Quad: Fast performance at its core |access-date=June 27, 2008 |last=Norr |first=Henry |date=November 22, 2005 |work=[[Macworld]] |publisher=[[International Data Group]] |archive-date=June 19, 2008 |archive-url=https://web.archive.org/web/20080619144840/http://www.macworld.com/article/48071/2005/11/quadreview.html |url-status=live }}</ref> The older PCI-X, Dual 2.7&nbsp;GHz model remained available for a while, but the slower speed single-core models were discontinued immediately.
* 2006 August: The Power Mac is replaced by its Intel successor, the [[Mac Pro]].