Editing Pentium 4 (section)

===Cedar Mill===
[[File:Intel microprocessor Pentium 4 HT 651 3.4 GHz - SL9KE-3367.jpg|thumb|160px|Pentium 4 HT 651 3.4&nbsp;GHz]]
The final revision of the Pentium 4 was ''Cedar Mill'', released on January 5, 2006. This was a die shrink of the Prescott-based 600 series core to [[65&nbsp;nm]], with no real feature additions but significantly reduced power consumption. The Cedar Mill is closely linked to the [[Pentium D#Presler|Pentium D Presler]] revision, with each Presler CPU consisting of two Cedar Mill cores on the same chip package.<ref name=presler>{{cite web | url=https://www.theregister.com/2006/02/01/intel_upgrades_presler_core/ | title=Intel to add Enhanced SpeedStep to 65nm desktop chips | website=The Register | date=2006-02-01 | access-date=2022-05-10 }}</ref> Cedar Mill had a lower heat output than Prescott, with a [[Thermal Design Power|TDP]] of 86&nbsp;W. The D0 stepping in late 2006 reduced this to 65 watts. It has a 65&nbsp;nm core and features the same 31-stage pipeline as Prescott, 800&nbsp;MT/s FSB, [[Intel 64]], [[Hyper-Threading]], but no [[Hardware-assisted virtualization|Virtualization]] Technology. As with Prescott 2M, Cedar Mill also has a 2&nbsp;MB L2&nbsp;cache.

Intel initially announced four [[VT-x]] enabled Cedar Mill processors with model numbers 633 to 663,<ref name=cedarmill-vt>{{cite web | url=https://www.anandtech.com/show/1711 | title=Intel On the Offensive: Roadmap Details and Analysis | website=[[AnandTech]] | date=2005-06-14 | access-date=2022-05-10}}</ref> but these were later cancelled and replaced by models 631 to 661 without VT-x, the extra 1 added to the model number distinguishing them from the 90&nbsp;nm Prescott cores operating at the same frequencies.<ref name=cedarmill-novt>{{cite web | url=https://www.anandtech.com/show/1784 | title=Intel's 65nm Gameplan: Presler and Cedar Mill Updates | website=AnandTech | date=2005-09-09 | access-date=2022-05-10 }}</ref> Cedar Mill processors ranged in frequency from 3.0 to 3.6&nbsp;GHz, down from the 3.8&nbsp;GHz maximum of the Prescott-based 670 and 672. Overclockers managed to exceed 8&nbsp;GHz with these processors using liquid nitrogen cooling.<ref name="nordichardware.com">{{cite web |url=http://www.nordichardware.com/news,5505.html  |title=OC Team Italy sets a new world record at 8GHz |publisher=NordicHardware |date=January 22, 2007 |access-date=2008-01-11 |archive-url = https://web.archive.org/web/20080526053404/http://www.nordichardware.com/news,5505.html |archive-date = 2008-05-26}}</ref>

The name "Cedar Mill" refers to [[Cedar Mill, Oregon]], an [[Unincorporated area|unincorporated community]] near Intel's [[Hillsboro, Oregon]] facilities.