We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

[nextpage title=”Introduction”]

Intel Pentium 4 Processor was released in November 2000, using Intel’s seventh x86 microarchitecture, called Netburst. Pentium 4 processors can be found in three different core versions: Willamette, Northwood and Prescott. In this tutorial we will talk about each core version and list all Pentium 4 models released to date.

The first Pentium 4 models used socket 423 pinout, which had 423 pins as the name implies. Later Pentium 4 models with 478 pins were released (socket 478), where, in spite of having more terminals, were smaller than socket 423 models. The latest Pentium 4 processors use a new pinout, called socket LGA775.

For complete information on how Pentium 4 processors work from inside, read our tutorial Inside Pentium 4 Architecture.

[nextpage title=”Willamette”]

The first Pentium 4 models were based on Willamette core, which had 256 KB L2 cache, worked externally at 400 MHz (100 MHz transferring four data per clock cycle), SSE2 instructions support, 0.18 µm manufacturing process and 42 million transistors, using an area of 217 mm2. The metal alloy used on the transistor interconnections was aluminum.

Figure 1: Willamette core.

In the table below we list all Pentium 4 models released using Willamette core. 

Model	Internal Clock	External Clock	TDP	Max. Temp. (º C)	L2 Cache	Socket	Hyper-Threading
SL5SZ	2 GHz	400 MHz	71.8 W	74	256 KB	423	No
SL5TL	2 GHz	400 MHz	75.3 W	76	256 KB	478	No
SL5UH	2 GHz	400 MHz	75.3 W	76	256 KB	478	No
SL5TQ	2 GHz	400 MHz	71.8 W	74	256 KB	423	No
SL5VK	1.90 GHz	400 MHz	72.8 W	75	256 KB	478	No
SL67C	1.90 GHz	400 MHz	72.8 W	77	256 KB	478	No
SL5VN	1.90 GHz	400 MHz	69.2 W	73	256 KB	423	No
SL5WG	1.90 GHz	400 MHz	72.8 W	75	256 KB	478	No
SL6BF	1.90 GHz	400 MHz	72.8 W	77	256 KB	478	No
SL5WH	1.90 GHz	400 MHz	69.2 W	73	256 KB	423	No
SL4X5	1.80 GHz	400 MHz	66.7 W	78	256 KB	423	No
SL5UT	1.80 GHz	400 MHz	66.1 W	77	256 KB	478	No
SL5UM	1.80 GHz	400 MHz	66.7 W	78	256 KB	423	No
SL67B	1.80 GHz	400 MHz	66.1 W	77	256 KB	478	No
SL5VM	1.80 GHz	400 MHz	66.7 W	78	256 KB	423	No
SL4WV	1.80 GHz	400 MHz	66.7 W	78	256 KB	423	No
SL5UK	1.80 GHz	400 MHz	66.1 W	77	256 KB	478	No
SL5VJ	1.80 GHz	400 MHz	66.1 W	77	256 KB	478	No
SL5UV	1.80 GHz	400 MHz	66.1 W	77	256 KB	478	No
SL6BE	1.80 GHz	400 MHz	66.1 W	77	256 KB	478	No
SL5TK	1.70 GHz	400 MHz	63.5 W	76	256 KB	478	No
SL62Z	1.70 GHz	400 MHz	67.7 W	73	256 KB	478	No
SL59X	1.70 GHz	400 MHz	63.5 W	76	256 KB	478	No
SL67A	1.70 GHz	400 MHz	63.5 W	75	256 KB	478	No
SL5TP	1.70 GHz	400 MHz	64 W	70	256 KB	423	No
SL5SY	1.70 GHz	400 MHz	64 W	76	256 KB	423	No
SL5N9	1.70 GHz	400 MHz	63.5 W	76	256 KB	478	No
SL6BD	1.70 GHz	400 MHz	63.5 W	75	256 KB	478	No
SL5UG	1.70 GHz	400 MHz	63.5 W	76	256 KB	478	No
SL57V	1.70 GHz	400 MHz	64 W	70	256 KB	423	No
SL57W	1.70 GHz	400 MHz	64 W	76	256 KB	423	No
SL5UJ	1.60 GHz	400 MHz	60.8 W	75	256 KB	478	No
SL5UL	1.60 GHz	400 MHz	61 W	75	256 KB	423	No
SL5US	1.60 GHz	400 MHz	57.9 W	75	256 KB	478	No
SL5UW	1.60 GHz	400 MHz	57.9 W	75	256 KB	478	No
SL5VH	1.60 GHz	400 MHz	60.8 W	75	256 KB	478	No
SL5VL	1.60 GHz	400 MHz	61 W	75	256 KB	423	No
SL4WU	1.60 GHz	400 MHz	61 W	75	256 KB	423	No
SL679	1.60 GHz	400 MHz	60.8 W	75	256 KB	478	No
SL4X4	1.60 GHz	400 MHz	61 W	75	256 KB	423	No
SL6BC	1.60 GHz	400 MHz	60.8 W	75	256 KB	478	No
SL5SX	1.50 GHz	400 MHz	57.8 W	73	256 KB	423	No
SL5N8	1.50 GHz	400 MHz	57.9 W	73	256 KB	478	No
SL4WT	1.50 GHz	400 MHz	54.7 W	73	256 KB	423	No
SL4TY	1.50 GHz	400 MHz	54.7 W	72	256 KB	423	No
SL5TJ	1.50 GHz	400 MHz	57.9 W	73	256 KB	478	No
SL5TN	1.50 GHz	400 MHz	57.8 W	73	256 KB	423	No
SL59V	1.50 GHz	400 MHz	57.9 W	73	256 KB	478	No
SL4X3	1.50 GHz	400 MHz	54.7 W	73	256 KB	423	No
SL4SH	1.50 GHz	400 MHz	54.7 W	72	256 KB	423	No
SL5UF	1.50 GHz	400 MHz	57.9 W	73	256 KB	478	No
SL62Y	1.50 GHz	400 MHz	62.9 W	71	256 KB	478	No
SL6BA	1.50 GHz	400 MHz	57.9 W	73	256 KB	478	No
SL59U	1.40 GHz	400 MHz	55.3 W	72	256 KB	478	No
SL4X2	1.40 GHz	400 MHz	54.7 W	72	256 KB	423	No
SL4SG	1.40 GHz	400 MHz	51.8 W	70	256 KB	423	No
SL4SC	1.40 GHz	400 MHz	51.8 W	70	256 KB	423	No
SL5N7	1.40 GHz	400 MHz	55.3 W	72	256 KB	478	No
SL4WS	1.40 GHz	400 MHz	54.7 W	72	256 KB	423	No
SL5TG	1.40 GHz	400 MHz	55.3 W	72	256 KB	478	No
SL5UE	1.40 GHz	400 MHz	55.3 W	72	256 KB	478	No
SL5FW	1.30 GHz	400 MHz	51.6 W	70	256 KB	423	No
SL4SF	1.30 GHz	400 MHz	48.9 W	69	256 KB	423	No
SL5GC	1.30 GHz	400 MHz	51.6 W	70	256 KB	423	No
SL4QD	1.30 GHz	400 MHz	48.9 W	69	256 KB	423	No

[nextpage title=”Northwood”]

After Williamette came Northwood core. This core is around 60% smaller than Williamette core because of its 0.13 µm manufacturing process. Northwood core can be found using 512 KB or 2 MB L2 cache, external bus running at 400 MHz, 533 MHz or 800 MHz (100 MHz, 133 MHz or 200 MHz transferring four data per clock cycle, respectively), SS2 instructions support and built with 55 million transistors, using an area of 131 mm2. The metal alloy used on the transistor interconnections is copper.

Copper is a better conductor than aluminum and it is softer, allowing the construction of smaller connections between the transistors.

Figure 2: Northwood core.

In the table below we list all Pentium 4 models released using Northwood core.

Model	Internal Clock	External Clock	TDP	Max. Temp. (° C)	L2 Cache	Socket	Hyper-Threading
SL793	3.40 GHz	800 MHz	89 W	68	512 KB	478	No
SL7RR	3.40 GHz	800 MHz	109.6 W	66	2 MB	775	No
SL6WE	3.20 GHz	800 MHz	82 W	70	512 KB	478	No
SL792	3.20 GHz	800 MHz	82 W	70	512 KB	478	No
SL6WG	3.20 GHz	800 MHz	82 W	70	512 KB	478	No
SL6QC	3.06 GHz	533 MHz	81.8 W	69	512 KB	478	No
SL6PG	3.06 GHz	533 MHz	81.8 W	69	512 KB	478	Yes
SL6K7	3.06 GHz	533 MHz	–	69	512 KB	478	Yes
SL6S5	3.06 GHz	533 MHz	81.8 W	69	512 KB	478	Yes
SL6SM	3.06 GHz	533 MHz	81.8 W	69	512 KB	478	Yes
SL6JJ	3.06 GHz	533 MHz	–	69	512 KB	478	Yes
SL6WU	3 GHz	800 MHz	81.9 W	70	512 KB	478	No
SL6WK	3 GHz	800 MHz	81.9 W	70	512 KB	478	No
SL78Z	3 GHz	800 MHz	81.9 W	70	512 KB	478	No
SL7BK	3 GHz	800 MHz	82 W	66	512 KB	478	No
SL6WT	2.80 GHz	800 MHz	69.7 W	75	512 KB	478	No
SL6WJ	2.80 GHz	800 MHz	69.7 W	75	512 KB	478	No
SL6K6	2.80 GHz	533 MHz	68.4 W	73	512 KB	478	No
SL6Z5	2.80 GHz	800 MHz	75.1 W	72	512 KB	478	Yes
SL6S4	2.80 GHz	533 MHz	68.4 W	75	512 KB	478	No
SL78Y	2.80C GHz	800 MHz	69.7 W	75	512 KB	478	Yes
SL7EY	2.80 GHz	400 MHz	68.4 W	75	512 KB	478	No
SL6PF	2.80 GHz	533 MHz	68.4 W	75	512 KB	478	No
SL6HL	2.80 GHz	533 MHz	68.4 W	73	512 KB	478	No
SL6QB	2.80 GHz	533 MHz	68.4 W	75	512 KB	478	No
SL6SL	2.80 GHz	533 MHz	68.4 W	75	512 KB	478	No
SL6SK	2.66 GHz	533 MHz	66.1 W	74	512 KB	478	No
SL6DX	2.66 GHz	533 MHz	66.1 W	73	512 KB	478	No
SL6S3	2.66 GHz	533 MHz	66.1 W	74	512 KB	478	No
SL6PE	2.66 GHz	533 MHz	66.1 W	74	512 KB	478	No
SL6QA	2.66 GHz	533 MHz	66.1 W	74	512 KB	478	No
SL6EH	2.66 GHz	533 MHz	66.1 W	73	512 KB	478	No
SL6SB	2.60 GHz	400 MHz	62.6 W	72	512 KB	478	No
SL6QR	2.60 GHz	400 MHz	62.6 W	72	512 KB	478	No
SL6HB	2.60 GHz	400 MHz	62.6 W	72	512 KB	478	No
SL6GU	2.60 GHz	400 MHz	62.6 W	72	512 KB	478	No
SL6PP	2.60 GHz	400 MHz	62.6 W	72	512 KB	478	No
SL6WH	2.60 GHz	800 MHz	69 W	75	512 KB	478	No
SL6WS	2.60 GHz	800 MHz	69 W	75	512 KB	478	No
SL6S2	2.53 GHz	533 MHz	61.5 W	72	512 KB	478	No
SL6PD	2.53 GHz	533 MHz	61.5 W	72	512 KB	478	No
SL6EG	2.53 GHz	533 MHz	61.5 W	72	512 KB	478	No
SL6Q9	2.53 GHz	533 MHz	61.5 W	72	512 KB	478	No
SL6SJ	2.53 GHz	533 MHz	61.5 W	72	512 KB	478	No
SL6D8	2.53 GHz	533 MHz	59.3 W	71	512 KB	478	No
SL6DW	2.53 GHz	533 MHz	61.5 W	72	512 KB	478	No
SL682	2.53 GHz	533 MHz	59.3 W	71	512 KB	478	No
SL6EV	2.53 GHz	533 MHz	59.3 W	71	512 KB	478	No
SL685	2.53 GHz	533 MHz	59.3 W	71	512 KB	478	No
SL6QQ	2.50 GHz	400 MHz	61 W	71	512 KB	478	No
SL6SA	2.50 GHz	400 MHz	61 W	72	512 KB	478	No
SL6PN	2.50 GHz	400 MHz	61 W	72	512 KB	478	No
SL6EB	2.50 GHz	400 MHz	61 W	72	512 KB	478	No
SL6GT	2.50 GHz	400 MHz	61 W	72	512 KB	478	No
SL6EF	2.40 GHz	533 MHz	59.8 W	71	512 KB	478	No
SL6Q8	2.40 GHz	533 MHz	59.8 W	71	512 KB	478	No
SL6PM	2.40 GHz	400 MHz	59.8 W	71	512 KB	478	No
SL6DV	2.40 GHz	533 MHz	59.8 W	71	512 KB	478	No
SL67Z	2.40 GHz	533 MHz	57.8 W	70	512 KB	478	No
SL6E9	2.40 GHz	400 MHz	59.8 W	71	512 KB	478	No
SL6QP	2.40 GHz	400 MHz	59.8 W	71	512 KB	478	No
SL6RZ	2.40 GHz	533 MHz	59.8 W	71	512 KB	478	No
SL6D7	2.40 GHz	533 MHz	57.8 W	70	512 KB	478	No
SL6PC	2.40 GHz	533 MHz	59.8 W	71	512 KB	478	No
SL67R	2.40 GHz	400 MHz	57.8 W	70	512 KB	478	No
SL65R	2.40 GHz	400 MHz	57.8 W	70	512 KB	478	No
SL684	2.40 GHz	533 MHz	57.8 W	70	512 KB	478	No
SL6S9	2.40 GHz	400 MHz	59.8 W	71	512 KB	478	No
SL6SH	2.40 GHz	533 MHz	59.8 W	71	512 KB	478	No
SL66T	2.40 GHz	400 MHz	57.8 W	70	512 KB	478	No
SL68T	2.40 GHz	400 MHz	57.8 W	70	512 KB	478	No
SL6SR	2.40 GHz	400 MHz	59.8 W	71	512 KB	478	No
SL6WF	2.40 GHz	800 MHz	66.2 W	74	512 KB	478	No
SL6GS	2.40 GHz	400 MHz	59.8 W	71	512 KB	478	No
SL6WR	2.40 GHz	800 MHz	66.2 W	74	512 KB	478	No
SL6Z3	2.40 GHz	800 MHz	75.1 W	72	512 KB	478	No
SL79B	2.40B GHz	533 MHz	59.8 W	71	512 KB	478	No
SL6EU	2.40 GHz	533 MHz	57.8 W	70	512 KB	478	No
SL6ET	2.26 GHz	533 MHz	56 W	70	512 KB	478	No
SL683	2.26 GHz	533 MHz	56 W	70	512 KB	478	No
SL6PB	2.26 GHz	533 MHz	58 W	70	512 KB	478	No
SL6DU	2.26 GHz	533 MHz	58 W	70	512 KB	478	No
SL6EE	2.26 GHz	533 MHz	58 W	70	512 KB	478	No
SL6Q7	2.26 GHz	533 MHz	58 W	70	512 KB	478	No
SL67Y	2.26 GHz	533 MHz	56 W	70	512 KB	478	No
SL6RY	2.26 GHz	533 MHz	58 W	70	512 KB	478	No
SL6D6	2.26 GHz	533 MHz	56 W	70	512 KB	478	No
SL7V9	2.26 GHz	533 MHz	58 W	70	512 KB	478	No
SL6E8	2.20 GHz	400 MHz	57.1 W	70	512 KB	478	No
SL6GR	2.20 GHz	400 MHz	57.1 W	70	512 KB	478	No
SL6PL	2.20 GHz	400 MHz	57.1 W	70	512 KB	478	No
SL5YS	2.20 GHz	400 MHz	55.1 W	69	512 KB	478	No
SL6QN	2.20 GHz	400 MHz	57.1 W	70	512 KB	478	No
SL5ZU	2.20 GHz	400 MHz	55.1 W	69	512 KB	478	No
SL6S8	2.20 GHz	400 MHz	57.1 W	70	512 KB	478	No
SL66S	2.20 GHz	400 MHz	55.1 W	69	512 KB	478	No
SL68S	2.20 GHz	400 MHz	55.1 W	69	512 KB	478	No
SL68R	2 GHz	400 MHz	52.4 W	68	512 KB	478	No
SL66R	2 GHz	400 MHz	52.4 W	68	512 KB	478	No
SL5YR	2 GHz	400 MHz	52.4 W	68	512 KB	478	No
SL6E7	2 GHz	400 MHz	54.3 W	69	512 KB	478	No
SL6GQ	2 GHz	400 MHz	54.3 W	69	512 KB	478	No
SL6PK	2 GHz	400 MHz	54.3 W	69	512 KB	478	No
SL62Q	2 GHz	400 MHz	43.7 W	69	512 KB	478	No
SL6QM	2 GHz	400 MHz	54.3 W	69	512 KB	478	No
SL6S7	2 GHz	400 MHz	54.3 W	69	512 KB	478	No
SL5ZT	2 GHz	400 MHz	52.4 W	68	512 KB	478	No
SL6SP	2 GHz	400 MHz	75.3 W	76	512 KB	478	No
SL68Q	1.80 GHz	400 MHz	49.6 W	67	512 KB	478	No
SL66Q	1.80 GHz	400 MHz	49.6 W	67	512 KB	478	No
SL6E6	1.80 GHz	400 MHz	66.1 W	77	512 KB	478	No
SL6LA	1.80 GHz	400 MHz	66.1 W	77	512 KB	478	No
SL63X	1.80 GHz	400 MHz	49.6 W	67	512 KB	478	No
SL6PQ	1.80 GHz	400 MHz	66.1 W	77	512 KB	478	No
SL62R	1.80 GHz	400 MHz	40.9 W	68	512 KB	478	No
SL6QL	1.80 GHz	400 MHz	68.4 W	77	512 KB	478	No
SL62P	1.80 GHz	400 MHz	49.6 W	67	512 KB	478	No
SL6S6	1.80 GHz	400 MHz	–	–	512 KB	478	No
SL6SN	1.80 GHz	400 MHz	66.1 W	77	512 KB	478	No
SL62S	1.60 GHz	400 MHz	38 W	66	512 KB	478	No
SL668	1.60 GHz	400 MHz	46.8 W	66	512 KB	478	No

[nextpage title=”Prescott”]

Prescott core is manufactured under 90-nanometer (0,09 µm or 90 nm) technology and is used on modern Pentium 4 processors. It can be found with 512 KB, 1 MB or 2 MB of L2 cache, it works externally at 533 MHz or 800 MHz (133 MHz and 200 MHz transferring four data per clock cycle, respectively), support to the new SSE3 instructions and built with 125 million transistors, using an area of 112 mm2. The metal alloy used on the transistor interconnections is copper.

Figure 3: Prescott core.

In the table below we list all Pentium 4 models released using Prescott core.

 

SL7L9

sSpec	Model	Internal Clock	External Clock	TDP	Max. Temp. (° C)	L2 Cache	Socket	Supported Features
SL8Q9	672	3.80 GHz	800 MHz	115 W	72.8	2 MB	775	HT, XD, EMT64, Virtualization, Speedstep
SL8PY	670	3.80 GHz	800 MHz	–	72.8	2 MB	775	HT, XD, EMT64, Speedstep
SL84Y	570J	3.80 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD
SL8J7	571	3.80 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD, EMT64
SL7Z3	670	3.80 GHz	800 MHz	115 W	72.8	2 MB	775	HT, XD, EMT64, Speedstep
SL7P2	N/A	3.80 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD, EMT64
SL82U	570J	3.80 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD
SL8QB	662	3.60 GHz	800 MHz	115 W	72.8	2 MB	775	HT, XD, EMT64, Virtualization, Speedstep
SL8J6	561	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD, EMT64
SL7Q2	560J	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD
SL7Z5	660	3.60 GHz	800 MHz	115 W	72.8	2 MB	775	HT, XD, EMT64, Speedstep
SL8PZ	660	3.60 GHz	800 MHz	115 W	72.8	2 MB	775	HT, XD, EMT64, Speedstep
SL84X	560J	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD
560	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT, EMT64
SL7KN	560	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD
SL8UP	662	3.60 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EMT64, Virtualization
SL7NZ	560	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT, XD, EMT64
SL7J9	560	3.60 GHz	800 MHz	115 W	72.8	1 MB	775	HT
SL88L	N/A	3.40 GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL8K4	N/A	3.40 GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7B9	N/A	3.40 GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL7Z7	650	3.40 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EMT64, Speedstep
SL8J5	551	3.40 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EMT64
SL833	550J	3.40 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL7J8	550	3.40 GHz	800 MHz	115 W	72.8	1 MB	775	HT
SL7AJ	N/A	3.40E GHz	800 MHz	103 W	73.1	1 MB	478	HT
SL7KD	N/A	3.40 GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL8Q5	650	3.40 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EMT64, Speedstep
SL8PS	551	3.40 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EMT64
SL9C5	551	3.40 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EMT64
SL7L8	N/A	3.40 GHz	800 MHz	115 W	72.8	1 MB	775	HT, EMT64
SL7PP	N/A	3.40 GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL7PY	550J	3.40 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL7PZ	550	3.40 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL7E6	N/A	3.40 GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL7KM	550	3.40 GHz	800 MHz	115 W	72.8	1 MB	775	HT
SL7L5	N/A	3.20 GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7B8	N/A	3.20E GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL7KL	540	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT
SL7PW	540J	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL7PX	540	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7KC	N/A	3.20E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7Z8	640	3.20 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EM64T, Speedstep
SL7LA	N/A	3.20 GHz	800 MHz	103 W	67.7	1 MB	775	HT, EM64T
SL7PN	N/A	3.20E GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL82Z	540J	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL8J2	541	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL8Q6	640	3.20 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EM64T, Speedstep
SL79M	N/A	3.20E GHz	800 MHz	103 W	73.2	1 MB	478	HT
SL8K2	N/A	3.20E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL8PR	541	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7J7	540	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT
SL9C6	541	3.20 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7E5	N/A	3.20E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL88K	N/A	3.20E GHz	800 MHz	89 W	69.1	1 MB	478	–
SL8JA	519K	3.06 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL8PN	519K	3.06 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL8ZZ	524	3.06 GHz	533 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL9CA	524	3.06 GHz	533 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL87L	519	3.06 GHz	533 MHz	84 W	67.7	1 MB	775	XD
SL8Q7	630	3 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EM64T, Speedstep
SL7PM	N/A	3E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL82X	530J	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL7PU	530J	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL8HZ	531	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7L4	N/A	3 GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7E4	N/A	3E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL9CB	531	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7KK	530	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT
SL88J	N/A	3E GHz	800 MHz	89 W	69.1	1 MB	478	–
SL79L	N/A	3E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7J6	530	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT
SL7KB	N/A	3E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL8JZ	N/A	3 GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7Z9	630	3 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EM64T, Speedstep
SL8PQ	531	3 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL8ZY	517	2.93 GHz	533 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7YV	515	2.93 GHz	533 MHz	84 W	67.7	1 MB	775	–
SL85V	515	2.93 GHz	533 MHz	84 W	67.7	1 MB	775	XD
SL8J9	516	2.93 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL9CD	517	2.93 GHz	533 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL8PM	516	2.93 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL7K9	N/A	2.80A GHz	533 MHz	89 W	69.1	1 MB	478	–
SL7KH	520	2.80 GHz	533 MHz	84 W	67.7	1 MB	775	–
SL7KA	N/A	2.80E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7J5	520	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	HT
SL7E3	N/A	2.80E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7KJ	520	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	HT
SL7J4	520	2.80 GHz	533 MHz	84 W	67.7	1 MB	775	HT
SL8JX	N/A	2.80 GHz	533 MHz	89 W	69.1	1 MB	478	–
SL8PP	521	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL8AB	620	2.80 GHz	800 MHz	84 W	67.7	2 MB	775	HT, XD, EM64T
SL8HX	521	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL8U4	511	2.80 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL9CJ	511	2.80 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL79K	N/A	2.80E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL8U5	511	2.80 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL9CG	521	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD, EM64T
SL7PR	520J	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	HT, XD
SL7PT	505	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	XD
SL7PK	N/A	2.80E GHz	533 MHz	89 W	69.1	1 MB	478	–
SL7PL	N/A	2.80E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7E2	N/A	2.80A GHz	533 MHz	89 W	69.1	1 MB	478	–
SL88G	N/A	2.80 GHz	533 MHz	89 W	69.1	1 MB	478	–
SL88H	N/A	2.80E GHz	800 MHz	89 W	69.1	1 MB	478	HT
SL7D8	N/A	2.80A GHz	533 MHz	89 W	69.1	1 MB	478	–
SL82V	521	2.80 GHz	800 MHz	84 W	67.7	1 MB	775	XD
SL7YU	505	2.66 GHz	533 MHz	84 W	69.1	1 MB	775	–
SL8B3	N/A	2.66 GHz	533 MHz	89 W	69.1	1 MB	478	–
SL85U	505J	2.66 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL8J8	506	2.66 GHz	533 MHz	84 W	67.7	1 MB	775	XD. EM64T
SL9CK	506	2.66 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL7E9	N/A	2.66 GHz	533 MHz	103 W	73.1	1 MB	478	–
SL8PL	506	2.66 GHz	533 MHz	84 W	67.7	1 MB	775	XD, EM64T
SL88F	N/A	2.40 GHz	533 MHz	89 W	69.1	1 MB	478	–
SL7FY	N/A	2.40 GHz	533 MHz	89 W	69.1	1 MB	478	HT
SL7YP	N/A	2.40 GHz	533 MHz	89 W	69.1	1 MB	478	–
SL7E8	N/A	2.40A GHz	533 MHz	89 W	69.1	1 MB	478	–
SL7D7	N/A	2.26 GHz	533 MHz	89 W	69.1	512 KB	478	–

[nextpage title=”Pentium 4 Extreme Edition”]

Pentium 4 Extreme Edition was released on november 2003 and was the first desktop CPU to carry an integrated L3 memory cache. This processor has 2 MB of L3 memory cache accessed under the CPU internal clock. The first Pentium 4 Extreme Edition Models were based on the Gallatin core, which had 512 KB of L2 memory cache and 2 MB of L3 memory cache, ran externally at 800 MHz or 1,066 MHz (200 MHz or 266 MHz transferring four data per clock cycle, respectively), SSE2 instruction set, 64-bit extensions, Hyper-Threading technology, 0.13 µm manufacturing process and 178 million transistors. Pentium 4 Extreme Edition models available today are based on Prescott 2M core, which is manufactured using 90 nm process. Below you can compare Prescott core (used by regular Pentium 4 processors) with Prescott 2M core (used by Pentium 4 Extreme Edition processors).

Figure 4: Prescott core.

Figure 5: Prescott 2M core.

While Prescott core has 125 million transistors, Prescott 2M core has 169 million. This difference goes to the 2 MB L2 memory cache that exists on Prescott 2M.

So far Intel has released only one Pentium 4 Extreme Edition based on Prescott 2M core. This processor has 2MB L2 memory cache, SSE3 instruction set, Hyper-Threading technology and 64-bit extensions.

Below we list all Pentium 4 Extreme Edition models launched so far.

Model	Internal Clock	External Clock	TDP	Max. Temp. (º C)	L2 Cache	L3 Cache	Socket	Tecnology	Hyper-Threading
SL7Z4	3.73 GHz	1066 MHz	115 W	72.8	2 MB	–	775	0.09 µm	Yes
SL7RT	3.46 GHz	1066 MHz	110.7 W	66	2 MB	–	775	0.13 µm	yes
SL7NF	3.46 GHz	1066 MHz	110.7 W	66	512 KB	2 MB	775	0.13 µm	yes
SL7RR	3.40 GHz	800 MHz	109.6 W	66	512 KB	2 MB	775	0.13 µm	yes
SL7GD	3.40 GHz	800 MHz	109.6 W	66	512 KB	2 MB	775	0.13 µm	yes
SL7CH	3.40 GHz	800 MHz	102.9 W	67	512 KB	2 MB	478	0.13 µm	yes
SL7AA	3.20 GHz	800 MHz	92.1 W	64	512 KB	2 MB	478	0.13 µm	yes