All Pentium 4 Models | Hardware Secrets

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.

click to enlarge
Figure 2: Northwood core.

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

Model	Internal Clock	External Clock	TDP	Max. Temp. (º 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