Intel Pentium II Xeon Drake core

Previous generation		Related core	Next Generation
	Drake » 0.25 micron » 100 MHz FSB » Up to 2 MB L2 cache Pentium II Xeon	Deschutes » 512 KB L2 cache » L2 cache runs at 1/2 of CPU frequency Pentium II	Tanner » 0.25 micron » SSE instructions Pentium III Xeon

The Drake core was introduced on Jun 29, 1998. This core is based on P6 microarchitecture.

New core features:

• 0.25 micron technology
• 100 MHz FSB
• Backside L2 cache with cache size up to 2 MB
• Slot cartridge

Pentium II Xeon processors with Drake core can be identified by:

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

	Pentium II Xeon
Manufacturing technology	0.25 micron
Frequency	400 MHz - 450 MHz
Fastest processor	80523KX4502M (BX80523KX4502M) - 450 MHz, 2 MB L2 cache 80523KX4501M (BX80523KX4501M) - 450 MHz, 1 MB L2 cache
Front-side bus	100 MHz
L2 cache	Backside 512 KB running at the CPU speed Backside 1 MB running at the CPU speed Backside 2 MB running at the CPU speed
Package	Single Edge Contact Cartridge
Socket	Slot 2