Intel Pentium 4

Intel Pentium 4 Features 1.4-3.4 GHz tact 400, 533 or 800 MHz FSB 44-55 Million Transistors 0.18µm or 0.13µm fabrication process 1.5/1.75 VCore 2x 16 KB L1-Cache 256 KB or 512 KB L2-Cache QuickStart, Deeper Sleep MMX, SSE, SSE2 instruction sets

Available Types and ThinkPads featuring them

Frequency (MHz)	Bus Speed (MHz)	VCore (V)	TDP (W)	ThinkPad Models
Pentium 4 (Northwood) - 0.13µm, 512 KB L2-Cache
3400 EE (HT)	800	1.5	95.1
3400 C (HT)	800	1.55	82.1
3200 EE (HT)	800	1.5	92.1
3200 C (HT)	800	1.5	82.0
3066 B (HT)	533	1.5	81.8
3000 C (HT)	800	1.5	81.9
30001 ?	400	...	...	G40
2800 C (HT)	800	1.5	69.7
2800 B	533	1.5	68.4
28001 ?	400	1.052	...	G40
2666 B	533	1.5	66.1
2600 C (HT)	800	1.5	69.0
2600 A	400	1.5	62.6	G40
2533 B	533	1.5	59.3
2500 A	400	1.5	59.3
2400 C (HT)	800	1.5	66.2
2400 B	533	1.5	57.8
2400 A	400	1.5	57.8	G40
2266 B	533	1.5	56.0
2200 A	400	1.5	55.1
2000 A	400	1.5	52.4
1800 A	400	1.5	49.6
1600 A	400	1.5	46.8
Pentium 4 (Willamette) - 0.18µm, 256 KB L2-Cache
2000	400	1.75	95.7
1900	400	1.75	92.3
1800	400	1.75	88.9
1700	400	1.75	85.3
1600	400	1.75	81.3
1500	400	1.75	77.1
1400	400	1.75	72.9

Thermal Specifications

The max. core Temperature is specified as follows:

• Willamette 1400: 70°C
• Willamette 1500: 72°C
• Willamette 1600, 1700, 1900, 2000: 75°C
• Willamette 1800: 77°C
• Northwood 3200 EE: 64°C
• Northwood 1600: 67°C
• Northwood 1800, 2000: 68°C
• Northwood 2200, 3066: 69°C
• Northwood 2266, 2400, 3000, 3200, 3400,3400 EE: 70°C
• Northwood 2500, 2533: 71°C
• Northwood 2600: 72°C
• Northwood 2666: 74°C
• Northwood 2800: 75°C

GCC Optimization Flags

FOOTNOTES [Δ]

1. According to IBM specs the G40 featured 2.8 and 3.0 GHz Pentium 4 processors with 400 MHz front side bus. It is hard to find any references to the existence of such processors at all. Tread this information as highly uncertain. Also, there's a possibility that the G40s used Mobile Pentium 4-M processors instead of Pentium 4.