Editing Celeron (section)

=== NetBurst-based Celerons ===
{{Main|List of Intel Celeron microprocessors#Netburst based Celerons}}

==== Willamette-128 ====
These Celerons were for socket 478 and were based on the ''[[Pentium 4#Willamette|Willamette]]'' [[Pentium 4]] core, being a completely different design compared to the previous Tualatin Celeron. These are often known as the ''Celeron 4''. Their L2 cache (128&nbsp;KB) is half that of the ''Willamette''-based Pentium 4's 256&nbsp;KB of L2 cache, but otherwise the two are very similar. With the transition to the Pentium 4 core the Celeron now featured SSE2 instructions. The ability to share the same socket as the Pentium 4 meant that the Celeron now had the option to use [[RDRAM]], [[DDR SDRAM]], or traditional [[SDRAM#SDR SDRAM|SDRAM]]. Willamette Celerons were launched May 15, 2002, initially at 1.7&nbsp;GHz, and offered a noticeable performance improvement over the older 1.3&nbsp;GHz ''Tualatin''-based Celeron part, being able to finally outperform a 1.3&nbsp;GHz AMD Duron, which at the time was AMD's top competing budget processor.<ref>{{cite news|last=Schmidt|first=Patrick|title=Good Old Newbie: Intel's 1.7 GHz Celeron for Socket 478|url=http://www.tomshardware.com/2002/05/15/good_old_newbie/|archive-url=https://web.archive.org/web/20071213032908/http://www.tomshardware.com/2002/05/15/good_old_newbie/|url-status=dead|archive-date=December 13, 2007|publisher=[[Tom's Hardware Guide]]|date=May 15, 2002|access-date=July 30, 2007}}</ref> On June 12, 2002, Intel launched the last Willamette Celeron, a 1.8&nbsp;GHz model.<ref>{{cite news|last=Sigvartsen|first=Ana|title=Intel pushes Celerons to 1.8 GHz|url=http://www.infosatellite.com/news/2002/06/a130602celeron_18.html|publisher=Infosatellite.com|date=June 13, 2002|access-date=July 30, 2007|url-status=dead|archive-url=https://web.archive.org/web/20071012160258/http://infosatellite.com/news/2002/06/a130602celeron_18.html|archive-date=October 12, 2007|df=dmy-all}}</ref> It contains 42 million transistors and has a die area of 217&nbsp;mm<sup>2</sup>.<ref>{{cite web|url=http://www.chiplist.com/Intel_Pentium_4_Celeron_processor_Willamette_128/tree3f-subsection--2027-/|title=Intel Pentium 4 Celeron processor (Willamette-128)|work=chiplist.com}}</ref>

In Intel's "Family/Model/Stepping" scheme, Willamette Celerons and Pentium 4s are family 15, model 1, and their Intel product code is 80531.

==== Northwood-128 ====
These socket 478 Celerons are based on the ''[[Pentium 4#Northwood|Northwood]]'' Pentium 4 core, and also have 128&nbsp;KB of L2&nbsp;cache. The only difference between the ''Northwood-128''-based and the ''Willamette-128''-based Celeron is the fact that it was built on the new 130&nbsp;nm process which shrank the die size, increased the transistor count, and lowered the core voltage from 1.7&nbsp;V on the ''Willamette-128'' to 1.52&nbsp;V for the ''Northwood-128''. Despite these differences, they are functionally the same as the Willamette-128 Celeron, and perform largely the same clock-for-clock. The ''Northwood-128'' family of processors were initially released as a 2&nbsp;GHz core (a 1.9&nbsp;GHz model was announced earlier, but never launched<ref>{{cite news|last=Sigvartsen|first=Ana|title=Intel plans faster 0.13-micron Celeron|url=http://www.infosatellite.com/news/2002/06/a170602celeron.html|publisher=Infosatellite.com|date=June 17, 2002|access-date=July 30, 2007|url-status=dead|archive-url=https://web.archive.org/web/20071012160303/http://infosatellite.com/news/2002/06/a170602celeron.html|archive-date=October 12, 2007|df=dmy-all}}</ref>) on September 18, 2002.<ref>{{cite news|last=Sigvartsen|first=Ana|title=Intel launches new Celeron, updates prices|url=http://www.infosatellite.com/news/2002/09/a190902celeron.html|publisher=Infosatellite.com|date=September 19, 2002|access-date=July 30, 2007|url-status=dead|archive-url=https://web.archive.org/web/20071006095201/http://www.infosatellite.com/news/2002/09/a190902celeron.html|archive-date=October 6, 2007|df=dmy-all}}</ref> Since that time Intel has released a total of 10 different clock speeds ranging from 1.8&nbsp;GHz to 2.8&nbsp;GHz, before being surpassed by the Celeron D. Although the ''Northwood''-based Celerons suffer considerably from their small L2&nbsp;cache, some clock rates have been favored in the enthusiast market because, like the old 300A, they can run well above their specified clock rate.<ref name="Schmid" />

In Intel's "Family/Model/Stepping" scheme, Northwood Celerons and Pentium 4s are family 15, model 2, and their Intel product code is 80532.

==== Prescott-256 {{Anchor|Celeron D}} ====
[[File:Intel Celeron D 340 (Prescott) (JPG).jpg|thumb|Prescott Celeron D 340 die shot ]]
Prescott-256 '''Celeron D''' processors, initially launched June 25, 2004,<ref>{{cite news|last=Shilov|first=Anton|title=Intel Officially Launched Celeron D Processors.|url=http://www.xbitlabs.com/news/cpu/display/20040625022821.html|publisher=X-bit labs|date=June 25, 2004|access-date=July 31, 2007|url-status=dead|archive-url=https://web.archive.org/web/20070930014514/http://www.xbitlabs.com/news/cpu/display/20040625022821.html|archive-date=September 30, 2007|df=dmy-all}}</ref> featuring double the L1 cache (16&nbsp;KB) and L2 cache (256&nbsp;KB) as compared to the previous Willamette and Northwood desktop Celerons, by virtue of being based on the ''[[Pentium 4#Prescott|Prescott]]'' Pentium 4 core.<ref>{{cite news|last=Wilson|first=Derek|title=Intel Celeron D: New, Improved & Exceeds Expectations|url=http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2093| publisher=[[AnandTech]]|date=June 24, 2004|access-date=July 31, 2007}}</ref>

It also features a 533&nbsp;MT/s bus and [[SSE3]], and a 3xx model number (compared to 5xx for Pentium 4s and 7xx for Pentium Ms). The Prescott-256 Celeron D was manufactured for [[Socket 478]] and [[LGA 775]], with 3x0 and 3x5 designations from 310 through to 355 at clock speeds of 2.13&nbsp;GHz to 3.33&nbsp;GHz.

The Intel Celeron D processor works with the Intel 845 and 865 chipset families. The ''D'' suffix actually has no official designation and does not indicate that these models are dual-core. It is used simply to distinguish this line of Celeron from the previous, lower performing Northwood and Willamette series, and also from the mobile series, the Celeron M (which also uses 3xx model numbers).<ref>{{cite news|last=Aubrey|first=John|title=Celeron D: the Little Processor that Could|url=http://www.devhardware.com/c/a/Computer-Processors/Celeron-D-the-Little-Processor-that-Could|publisher=Dev Hardware| date=April 18, 2005| access-date=September 23, 2006}}</ref> Unlike the [[Pentium D]], the Celeron D is ''not'' a dual core processor.

The Celeron D was a major performance improvement over previous NetBurst-based Celerons. A test using a variety of applications, run by Derek Wilson at Anandtech.com, showed that the new Celeron D architecture alone offered up performance improvements on average of >10% over a Northwood Celeron when both CPUs were run at the same bus and clock rate.<ref>{{cite news|last=Wilson|first=Derek|title=Intel Celeron D: New, Improved & Exceeds Expectations|url=http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=2093&p=5|publisher=[[AnandTech]]| date=June 24, 2004|access-date=July 31, 2007}}</ref> This CPU also had the addition of SSE3 instructions and the higher FSB which only contributed to this already impressive gain.

Despite its many improvements, the ''Prescott'' core of the Celeron D had at least one major drawback{{snd}} heat. Unlike the fairly cool-running Northwood Celeron, the Prescott-256 had a class-rated [[thermal design power|TDP]] of 73&nbsp;W, which prompted Intel to include a more intricate copper core/aluminum finned cooler to help handle the additional heat.<ref>{{cite news | last=Gavrichenkov | first=Ilya | title=Intel Celeron D CPU: Budget Processors from Intel Acquire Prescott Core | url=http://www.xbitlabs.com/articles/cpu/display/celeron-d_6.html | publisher=X-bit labs | date=June 25, 2004 | access-date=July 31, 2007 | url-status=dead | archive-url=https://web.archive.org/web/20070807042345/http://www.xbitlabs.com/articles/cpu/display/celeron-d_6.html | archive-date=August 7, 2007 | df=dmy-all }}</ref>

In mid-2005, Intel refreshed the Celeron D with [[Intel 64]] and [[XD Bit]] (eXecute Disable) enabled. Model numbers increase by 1 over the previous generation (e.g., 330 became 331). This only applied to [[LGA 775]] Celeron Ds. There are no [[Socket 478]] CPUs with XD Bit capabilities.

In Intel's "Family/Model/Stepping" scheme, Prescott Celeron Ds and Pentium 4s are family 15, model 3 (up to stepping E0) or 4 (stepping E0 onwards), and their Intel product code is 80546 or 80547, depending on socket type.

==== Cedar Mill-512 ====
Based on the ''Cedar Mill'' Pentium 4 core, this version of the Celeron D was launched May 28, 2006, and continued the 3xx naming scheme with the Celeron D 347 (3.06&nbsp;GHz), 352 (3.2&nbsp;GHz), 356 (3.33&nbsp;GHz), 360 (3.46&nbsp;GHz), and 365 (3.6&nbsp;GHz). The Cedar Mill Celeron D is largely the same as the Prescott-256, except with double the L2 cache (512&nbsp;KB) and based on a 65&nbsp;nm manufacturing process. The Cedar Mill-512 Celeron D is LGA 775 exclusive. The main benefits of the Cedar Mill Celerons over the Prescott Celerons are the slightly increased performance due to the larger L2 cache, higher clock rates, and less heat dissipation, with several models having a TDP lowered to 65&nbsp;W from Prescott's lowest offering of 73&nbsp;W.<ref>{{cite news|last=Kowaliski|first=Cyril|title=65 nm Celeron Ds coming May&nbsp;28|url=http://techreport.com/onearticle.x/9982|publisher=[[The Tech Report]]|date=May 16, 2006|access-date=July 31, 2007}}</ref>

In Intel's "Family/Model/Stepping" scheme, Cedar Mill Celeron Ds and Pentium 4s are family 15, model 6, and their Intel product code is 80552.