Core specifications

Core specifications

Pentium Pro

* L1 cache: 8 + 8 KB (Data + Instructions)
* L2 cache: 256, 512 KB (one die) or 1024 KB (two 512 KB dies) in a multi-chip module clocked at CPU-speed
* Socket: Socket 8
* Front side bus: 60 and 66 MHz
* VCore: 3.1-3.3 V
* Fabrication: 0.50 µm or 0.35 BiCMOS
* First release: November 1995
* Clockrate: 150, 166, 180, 200 MHz

Pentium II Overdrive

* L1 cache: 16 + 16 KB (Data + Instructions)
* L2 cache: 512 KB external chip on CPU module running at 100% of CPU speed
* Socket: Socket 8
* Multiplier: Locked at 5x
* Front side bus: 60 and 66 MHz
* VCore: 3.1-3.3 V (Has on-board voltage regulator)
* Fabrication: 0.25 µm
* Based on the Deschutes-generation Pentium II
* First release: 1997
* Supports MMX technology

Pentium Pro / 6th generation competitors

* AMD K5 and K6
* Cyrix 6x86 and MII
* IDT WinChip
* Intel Pentium (co-existed with Pentium Pro for several years)