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Some words about P4 6xx series

According to The Register, Intel is going to ship desktop Pentium 4 Extreme Edition with 2MB L2 cache. At least Japanese sources expect P4 6xx series early next year.

Besides, 3.73 GHz P4 Extreme Edition should be introduced late in Q4 2004. It will be made using 90nm process and (at least initially) will technologically relate to Pentium 4 than to Xeon. This will be the first P4EE with 7xx rating.

According to PC Watch, 6xx series will debut in Q1 2005. Initially the series will include 4 processors with 3.2, 3.4, 3.6 and 3.8 GHz clock rates and 640, 650, 660 and 670 ratings. 4 GHz P4 will also arrive in Q1 2005 with 580 rating. From the first glance the purpose of 7xx series is not clear as there are similar 6xx. But it seems the answer is FSB: 1066 MHz of 7xx and 800 MHz of 6xx.

  Pentium 4 5xx Pentium 4 6xx Pentium 4 Extreme Edition(90nm) ??
Codename Prescott Prescott 2M Prescott 2M Smithfield
Core Prescott Prescott Prescott Prescott??
Process 90nm
Rating 5xx 6xx n/a 7xx??
L1 cache 1MB 2MB 2MB 2MB??
FSB 800MHz 800MHz 1066MHz 1066MHz??
Socket LGA775 LGA775 LGA775 LGA775
Chipset 915/925, Glenwood, Lakeport 915/925, Glenwood, Lakeport 925XE, Glenwood, Lakeport Glenwood, Lakeport

The pricing for P4 5xx and 6xx series is interesting as well:

Pentium 4 6xx Clock rate Price
6603.6GHz 600
6503.4GHz 400
6403.2GHz 270

Pentium 4 5xx Clock rate Price
580J4GHz 800
570J3.8GHz 600
560/J3.6GHz 400
550/J3.4GHz 270
540/J3.2GHz 210
530/J3GHz 170
520/J2.8GHz 160

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