Intel Pentium 4

This page will show all objects that classify as Intel Pentium 4, and if possible sorted on production date.


Click on the blue name(s) below for detailed information, pictures and benchmarks (if available).

View processor details Intel Pentium 4 'Unknown'
Intel Pentium 4  'Unknown'

Not much known about this CPU but it might be the first S423 CPU out there! Unfortunatly it does not work so it's all guessing what it would be.

Using my home and kitchen plate I measured a 39 gram for this CPU. It's brother QT69ES, a newer working sample, was 40 gram. The difference might be sma... > Read more

View processor details Intel Pentium 4 1.x GHz 'QT69ES'
Intel Pentium 4 1.x GHz 'QT69ES'

The very first working Intel Pentium 4 processor! This model carries the name 'Intel Pentium 4 1.x GHz' but is often referred to as the 800MHz Pentium 4. At the time Intel made this processor it was unclear how fast it could run. The target was probably around 1GHz but because of the unlocked multip... > Read more

View processor details Intel Pentium 4 1.x GHz 'QT69ES'
Intel Pentium 4 1.x GHz 'QT69ES'

This one is the same as this Pentium 4 1.xGHz except for the fact that this one is not working. It misses some pins and the heatsink is quite scratched.... > Read more

View processor details Intel Pentium 4 1.x GHz 'QT69ES'
Intel Pentium 4 1.x GHz 'QT69ES'

My third QT69ES CPU. This one is like this 1.x GHz CPU but has a different production date. It is 2 weeks newer so I wonder if there is any difference (with overclocking for example) between the two.... > Read more

View processor details Intel Pentium 4 1.5 GHz 'QAQ1ES'
Intel Pentium 4 1.5 GHz 'QAQ1ES'

My third 1.5GHz Intel Pentium 4 CPU. This one is practically the same as this 1.5GHz CPU except for the fact that we are dealing with an Engineering Sample. Benchmarking this CPU would be useless as scores are identical to the 1500MHz Willamette in the given l... > Read more

View processor details Intel Pentium 4 1.4 GHz 'SL4SG'
Intel Pentium 4 1.4 GHz 'SL4SG'

Because I have both the 1300MHz and 1500MHz Pentium 4 for socket 423 the 1400MHz model seems like a nice addition. At the time Intel released these CPU's in November 2000 only the 1400MHz and 1500MHz models were released.

Interesting to see is that this CPU has been made in week 40 of 2000 which ... > Read more

View processor details Intel Pentium 4 1.3 GHz 'SL4QD'
Intel Pentium 4 1.3 GHz 'SL4QD'

The slowest production Pentium 4 'Willamette'. The Pentium 4 was released at frequencies starting from 1400MHz but Intel decided to ship 1300MHz parts afterwards.... > Read more

View processor details Intel Pentium 4 1.3 GHz 'SL4SF'
Intel Pentium 4 1.3 GHz 'SL4SF'

Just like this Pentium 4 1.3GHz but with a different sSpec number.... > Read more

View processor details Intel Pentium 4 1.5 GHz 'SL4WT'
Intel Pentium 4 1.5 GHz 'SL4WT'

Just a regular Intel Pentium 4 'Willamette' CPU.

The first retail Pentium 4's ran at 1,4GHz and 1,5GHz and were released in November 2000. This CPU is made in the 16th week of 2001.

I bought this CPU because I didn't have any regular socket 423 CPU. In case I had to test something (a motherboa... > Read more

View processor details Intel Pentium 4 1.5A GHz 'Unknown'
Intel Pentium 4 1.5A GHz 'Unknown'

The successor of the 180nm 'Willamette' core. This could be the first 'Northwood' stepping out there. The CPU has no sSpec on the heatspreader which makes it difficult to give it an official name.

Check out the benchmarks to see this 'Northwood' crushing the 'Willamette' CPU. Also consider that t... > Read more

View processor details Intel Pentium 4 1.4 GHz 'SL59U'
Intel Pentium 4 1.4 GHz 'SL59U'

The slowest official Pentium 4 for S478 socket. It was launched together with the faster models up to 2GHz.

In the wild these 1400MHz is an uncommon CPU. Usually the 1400MHz parts are made to fit the older S423 and it seems that faster models (1,5 to 2,0GHz) were sold more. Especially 1.6, 1.7 an... > Read more

View processor details Intel Pentium 4 1.6 GHz 'SL5VH'
Intel Pentium 4 1.6 GHz 'SL5VH'

Easily overshadowed by AMD's Athlon and Athlon XP processors. The Willamette was not much of a performance king, especially when fitted with slow (but cheap) SDR-SDRAM. Something that happenend a lot in cheap home use systems.... > Read more

View processor details Intel Pentium 4 1.5 GHz 'SL5N8'
Intel Pentium 4 1.5 GHz 'SL5N8'

Like this Pentium 4 1500 but with a different sSpec number and a Willamette core with C1 stepping.... > Read more

View processor details Intel Pentium 4 2.0A GHz 'QLE4ES'
Intel Pentium 4 2.0A GHz 'QLE4ES'

An interesting 'Northwood' processor clocked at 2GHz! This one has been made in week 45 of 2001 which is 13 weeks before the official announcement of the first Intel Pentium 4 'Northwood' on 7 January 2002.

What makes this sample interesting? Because it has a rework! In the second picture some p... > Read more

View processor details Intel Pentium 4 1.5 GHz 'SL5TJ'
Intel Pentium 4 1.5 GHz 'SL5TJ'

Pretty much like this Pentium 4 except that the socket is different. This model is for S478 which is also available for Northwood and Prescott CPU's.... > Read more

View processor details Intel Pentium 4 1.8A GHz 'SL63X'
Intel Pentium 4 1.8A GHz 'SL63X'

A low clocked Northwood CPU. Ideally for overclocking! Some of these CPU's could run at 2,4GHz by setting the front side bus to 133MHz (QDR533) which is quite an improvement.... > Read more

View processor details Intel Pentium 4 1.8 GHz 'SL5VJ'
Intel Pentium 4 1.8 GHz 'SL5VJ'

100MHz faster than this Pentium 4 but technically the same.... > Read more

View processor details Intel Pentium 4 1.7 GHz 'SL5TK'
Intel Pentium 4 1.7 GHz 'SL5TK'

A one-of-million S478 CPU. Nothing new, nothing special ;).

This CPU is perfect for filling up the gap between 1.5A GHz 'Northwood', 1.5 GHz Willamette and 2.0A GHz 'Northwood'. The 1.5GHz Willamette will run with 800MHz RIMM's; this 1700MHz S478 is tested with Single Channel DDR (on i845G) and D... > Read more

View processor details Intel Pentium 4 2.0A GHz 'SL66R'
Intel Pentium 4 2.0A GHz 'SL66R'

Same as this Pentium 4 but with different sSpec number.... > Read more

View processor details Intel Pentium 4 2.0A GHz 'SL6GQ'
Intel Pentium 4 2.0A GHz 'SL6GQ'

I can't really say much about this Pentium 4. It's just like the others but with a different sSpec number.... > Read more

View processor details Intel Pentium 4 2.4B GHz 'SL6EF'
Intel Pentium 4 2.4B GHz 'SL6EF'

Pretty much the same as the other 2.4B versions but has a different sSpec number and an old style heatspreader.... > Read more

View processor details Intel Pentium 4 2.53 GHz 'SL6DW'
Intel Pentium 4 2.53 GHz 'SL6DW'

A decent CPU for it's time (mid 2002), just like the 2.66GHz model. It features a 133MHz (QDR533) front side bus which works out nicely for a Northwood CPU clocked at 2533MHz.... > Read more

View processor details Intel Pentium 4 3.06 GHz 'SL6S5'
Intel Pentium 4 3.06 GHz 'SL6S5'

Released in November 2002; the first production x86 CPU to hit (and exceed) 3GHz and the first to have Hyper Threading Technology enabled.

Hyper Threading was introduced in early 2002 for the server environment (Xeon's). With the launch of the Pentium 4 3.06 GHz they brought the technology to the... > Read more

View processor details Intel Pentium 4 2.4B GHz 'SL6RZ'
Intel Pentium 4 2.4B GHz  'SL6RZ'

Just a normal desktop version of the Intel Pentium 4. This one has a 133MHz (DDR533) FSB and a C1 'Northwood' core. In other words: in idle modus this CPU won't use much energy.

The CPU came along with a HP/Compaq DC310 machine, a simple desktop PC with Intel integrated graphics which runs quiet ... > Read more

View processor details Intel Pentium 4 2.4B GHz 'SL6SH'
Intel Pentium 4 2.4B GHz 'SL6SH'

Runs just like the other 2.4B versions but has a different sSpec number.... > Read more

View processor details Intel Pentium 4 2.4B GHz 'SL6Q8'
Intel Pentium 4 2.4B GHz 'SL6Q8'

A 2.4 GHz Pentium 4 with D1 Northwood core. The D1 core has a few improvements over the C1 core.... > Read more

View processor details Intel Pentium 4 2.66 GHz 'SL6S3'
Intel Pentium 4 2.66 GHz 'SL6S3'

This CPU with C1 core is one week older than my newest Pentium 4 2.4B CPU with D1 core. It's not uncommon for a CPU manufacturer to ship two (or more) versions of practically the same CPU.... > Read more

View processor details Intel Pentium 4 520 (2.8 GHz) 'QJ23ES'
Intel Pentium 4 520 (2.8 GHz) 'QJ23ES'

An interesting CPU if I may say so. This particular model, of which more than 200 are made, has been fabricated in the 42th week of 2003 (13 Oct ~ 19 Oct) which makes it an early sample. The very first Prescott release was on 2 February 2004.

The Prescott core is the third Pentium 4 core Intel m... > Read more

View processor details Intel Pentium 4 2.66 GHz 'SL6PE'
Intel Pentium 4 2.66 GHz 'SL6PE'

Just like this Pentium 4 2.66 but with a newer core (stepping D1 instead of C1).... > Read more

View processor details Intel Pentium 4 3C GHz 'SL6WK'
Intel Pentium 4 3C GHz 'SL6WK'

Right at the 3GHz spot! The 3.0 GHz Northwood can be considered a successful processor that offered enough performance for quite some time.... > Read more

View processor details Intel Pentium 4 540 (3.2 GHz) 'Q01M'
Intel Pentium 4 540 (3.2 GHz) 'Q01M'

An engineering sample from the fourth week of 2004. In this period Intel also officially announced the first Pentium 4 'Prescott' processors. I guess this CPU would've been shipped to reviewers or system integrators for test and evaluation purposes. The core is D0-stepping which represents the first... > Read more

View processor details Intel Pentium 4 560 (3.6 GHz) 'QQ44ES'
Intel Pentium 4 560 (3.6 GHz) 'QQ44ES'

The Prescott 3600MHz was the top-of-the-line Pentium 4 for quite a while (until the 3800MHz came along but that took a while) and especially in the 11th week of 2004 the 3.6GHz was Intel's fastest desktop CPU.

This engineering sample is just a few weeks newer than the release of the first Pentiu... > Read more

View processor details Intel Pentium 4 3E GHz 'SL79L'
Intel Pentium 4 3E GHz 'SL79L'

This 3.0E also runs at 3 GHz like the Pentium 4 3.0 but has a Prescott core. The Prescott core is made with 90nm technology whereas the Northwood uses 130nm. Normally this would mean that the CPU runs cooler but Prescott proves that the opposite can be true. ... > Read more

View processor details Intel Pentium 4 3.2E GHz 'SL7E5'
Intel Pentium 4 3.2E GHz 'SL7E5'

200MHz faster than the 3GHz barrier. People often bought the 3GHz because it sounds a lot faster than 2.8GHz and was not as expensive as the 3.2GHz Sounds weird? Well, 3GHz just looks like a good mark :).... > Read more

View processor details Intel Pentium 4 540 (3.2 GHz) 'SL7J7'
Intel Pentium 4 540 (3.2 GHz) 'SL7J7'

An engineering sample from the fourth week of 2004. In this period Intel also officially announced the first Pentium 4 'Prescott' processors. I guess this CPU would've been shipped to reviewers or system integrators for test and evaluation purposes. The core is D0-stepping which represents the first... > Read more

View processor details Intel Pentium 4 2.0A GHz 'SL6PK'
Intel Pentium 4 2.0A GHz 'SL6PK'

A Pentium 4 2GHz 'Northwood' from the 32th week of 2004; a late one! In early 2004 Intel released the 'Prescott' and 3GHz+ chips were commonplace.

This CPU was fitted on a Protech Prox1750 G2 motherboard which features one 16-it ISA slot. The (medical) application this PC was built for didn't nee... > Read more

View processor details Intel Pentium 4 519 (3.06 GHz) 'QDZPES'
Intel Pentium 4 519 (3.06 GHz) 'QDZPES'

An engineering sample running at 3.06 GHz with an utterly low front side bus of 133MHz (QDR533). In the end of 2002 Intel released the first 3GHz+ (3.06 GHz) Northwood CPU with Hyperthreading. Back then it used the 133MHz (QDR533) bus as it was normal for the time and 200MHz (QDR800) motherboards we... > Read more

View processor details Intel Pentium 4 571 (3.8 GHz) 'Q65YES'
Intel Pentium 4 571 (3.8 GHz) 'Q65YES'

The fastest Pentium 4 released runs at 3800MHz; just like this engineering sample. I've been using this CPU for my test system and it runs great. It's speed is nowhere comparable with today's Core 2 Quad, Core i7 or Phenom II X4 CPU's but with a clean, newly installed operating system it's goes fair... > Read more

View processor details Intel Pentium 4 530 (3 GHz) 'SL7KK'
Intel Pentium 4 530 (3 GHz) 'SL7KK'

Just a normal Pentium 4 3GHz Prescott with D0 core.... > Read more

View processor details Intel Pentium 4 650 (3.4 GHz) 'QDGHES'
Intel Pentium 4 650 (3.4 GHz) 'QDGHES'

A hot running 3400MHz Pentium 4 Prescott with 2MB L2-cache but still quite a performer in the end of 2004.... > Read more

View processor details Intel Pentium 4 540 (3.2 GHz) 'SL7PW'
Intel Pentium 4 540 (3.2 GHz) 'SL7PW'

E0-stepping of the Pentium 4 540. In early 2004 the Prescott was running very hot and Intel quickly came with new revisions that had improvements. It's not faster nor slower than the Pentium 4 540 D0-stepping but just a tad cooler (but still running quite hot... > Read more

View processor details Intel Pentium 4 505 (2.66 GHz) 'QDID'
Intel Pentium 4 505 (2.66 GHz) 'QDID'

An engineering sample of the slowest Pentium 4 'Prescott' that uses the model-numbers for speed indication. The slowest 'Prescott', running at 2.4GHz is designated as Pentium 4 2.4A.... > Read more

View processor details Intel Pentium 4 530J (3 GHz) 'SL7PU'
Intel Pentium 4 530J (3 GHz) 'SL7PU'

Just a normal Pentium 4 3GHz Prescott with E0 core. The E0 stepping (with J in the name/model number) should be about 20% cooler than it's predecessors.... > Read more

View processor details Intel Pentium 4 2.4A GHz 'SL88F'
Intel Pentium 4 2.4A GHz 'SL88F'

An unopened Pentium 4 2.4A box. It has a socket 478 'Prescott' CPU inside which has a production date of mid-2005! Mid-2005 were the days of the first dual-core CPU's and Athlon64's running at 3500+ ratings or higher. I wonder who, in 2005, had interest in an 'old' 2.4GHz Pentium which has been on t... > Read more

View processor details Intel Pentium 4 521 (2.8 GHz) 'SL8PP'
Intel Pentium 4 521 (2.8 GHz) 'SL8PP'

Same as, but also opposite of the 2.8 GHz engineering sample.

This CPU is more than two years newer and uses the latest Prescott core (G1). The engineering sample uses one of the first cores (A4) and was made weeks before the official launch of the Prescott... > Read more

View processor details Intel Pentium 4 630 (3 GHz) 'SL7Z9'
Intel Pentium 4 630 (3 GHz) 'SL7Z9'

A late 3GHz Prescott (3th week of 2006) with 2MB L2-cache. The extra L2-cache might give this CPU a boost with games and such.... > Read more