Intel Pentium II Deschutes core

Previous generation		Related core	Next Generation
Klamath » 0.35 micron » Backside L2 cache Pentium II	Deschutes » 0.25 micron » 100 MHz FSB Pentium II	Covington » No L2 cache Celeron Drake » Up to 2 MB L2 cache » L2 cache runs at CPU frequency Pentium II Xeon	Katmai » 0.25 micron » 133 MHz FSB » SSE instructions Pentium III

The Deschutes core is based on P6 microarchitecture.

New core features:

• 0.25 micron technology
• 100 MHz FSB
• Lower core voltage and power requirements
• Different type of slot cartridge

Pentium II processors with Deschutes core can be identified by:

• Part number: part number contains 80523P or 80523U.
  An example: 80523PX333512.
• CPU ID: Processors with the Deschutes core have CPU identification numbers from 650 to 653. Please note that Pentium II Xeon CPUs with Drake core and Celeron processors with Covington core have the same CPU IDs.

	Desktop Pentium II
Manufacturing technology	0.25 micron
Frequency	266 MHz - 450 MHz
Fastest processor	80523PX333512 - 333 MHz, 66 MHz FSB 80523PX333512PE (B80523P333512E) - 333 MHz, 66 MHz FSB 80523PY450512 - 450 MHz, 100 MHz FSB 80523PY450512PE (B80523P450512E) - 450 MHz, 100 MHz FSB 80523PY450512PE SECC2 (BX80523U450512E) - 450 MHz, 100 MHz FSB
Front-side bus	66 MHz 100 MHz
L2 cache	Backside 512 KB running at 1/2 of processor speed
Package	Single Edge Contact Cartridge Single Edge Contact Cartridge 2
Socket	Slot 1