PentiumII > IntelPII266MMC

Modified: May 7, 2005, 1:58 am

Manufacturer:	Intel
Model:	266 / 512
Speed:	266MHz
Type:	Pentium II Mobile
Data Code:	9820
Introduced:	1997
Transistors:	7.5 Million
Package:	MCA
Process:	0.25 Micron
Architecture:	32 bit CISC w/ MMX
Used in:	Laptop computers and portables
Description:	The Pentium II is the second of the P6 series. The Pentium Pro was first. The PII includes MMX instructions and fixes the slow 16-bit performance of the Pentium Pro. It also marked a transition away from socketed CPUs. As in the PPRO, the 512K cache is seperate from the CPU dies, but instead of including it in the same cavity Intel chose to integrate it on a PCB. This allowed them to use commercial (cheaper) cache chips. With this though the cache ran at 1/2 CPU speed. The PII was originally made on a 0.35u process but transistioned to a much better 0.25u process. The PII also saw the introduction of a 100MHz Bus with the 350MHz and 400MHz CPUs. -------------- 80522 = 0.35u (Klamath) 80523 = 0.25u (Deschutes) Note: The code names are both rivers in Oregon that I have been on. ------------------------ This is the 1.7V Mobile Pentium II