Processor Cores
The Pentium 4 has an integrated heat spreader (IHS) that prevents the die from accidentally getting damaged when mounting and unmounting cooling solutions. Prior to the IHS, a CPU shim was sometimes used by people worried about damaging the core. Overclockers sometimes removed the IHS on Socket 423 and Socket 478 chips to allow for more direct heat transfer. On processors using the Socket LGA 775 (Socket T) interface, the IHS is directly soldered to the die(s), meaning that the IHS can not be easily removed.
| Intel Pentium 4 processor family | |||||||
|---|---|---|---|---|---|---|---|
| Desktop | Laptop | ||||||
| Code-named | Core | Date released | Code-named | Core | Date released | ||
| Willamette Northwood Prescott |
180 nm 130 nm 90 nm |
Nov 2000 Jan 2002 Mar 2004 |
Northwood | 130 nm | Jun 2003 | ||
| Northwood |
130 nm | Apr 2002 | |||||
| Northwood Prescott Prescott 2M Cedar Mill |
130 nm 90 nm 90 nm 65 nm |
May 2003 Feb 2004 Feb 2005 Jan 2006 |
Northwood Prescott |
130 nm 90 nm |
Sep 2003 Jun 2004 |
||
| Gallatin XE Prescott 2M XE |
130 nm 90 nm |
Sep 2003 Feb 2005 |
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