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Processor Family |
Model Name |
Intel Pentium 4 Willamette |
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Performance Rating |
1500 MHz |
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Front-side Bus Speed |
400 QDR (4 × 100 MHz) |
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Multiplier Ratio |
15.0× |
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Physical Design |
Interface Packing |
423-Pin PGA |
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478-Pin PGA |
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Core Voltage |
1.7 – 1.75 volts |
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Power Consumption |
57.9 watts |
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Maximum Power |
79 watts |
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Pentium 4 Willamette |
Model Rating |
1500 MHz |
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Overclocking Potential |
Multiplier Lock Support |
Locked Multiplier |
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Typical Multiplier O/C |
N/A |
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Typical Front-side Bus O/C |
440 – 480 QDR |
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(110 – 120 MHz) |
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Typical O/C Potential |
1650 – 1800 MHz |
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Maximum O/C Potential |
2000+ MHz |
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Overclocking Tolerances |
Recommended Cooling Type |
Forced-Air Heatsink |
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Recommended Heatsink Coolers |
Zalman CNPS-5000 |
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Swiftech MCX-478 |
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Maximum Core Voltage |
2.1 volts with Extreme Cooling |
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Maximum I/O Voltage |
3.5 volts with Chipset Cooler |
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Maximum Core Temperature |
72° Celsius |
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The Willamette 1500 MHz was the best-selling Intel processor in the early months of the P4 marketing initiative, due to its impressive performance-to-price ratio. Most units in this speed grade can attain stable overclocks exceeding 1700 MHz with installation of a decent heatsink cooler and a slight core voltage increase. As the P4 1500 design imposes a relatively low thermal limit of 72° Celsius, any attempts at overclocking beyond 1900 MHz should include high-quality forced-air heatsink cooling.
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