Gecko's CPU Library

IBM POWER4 processors

Introduction: 2001

The POWER4 "Gigaprocessor" copper SOI 64-bit CMP microprocessor was based on all earlier designs.

174-million-transistor POWER4 chip, with two 1.1/1.3GHz five-issue superscalar microprocessor cores, a triple-level cache hierarchy, up to 256GB memory, a 10-Gbyte/s main-memory interface, and a 45-Gbyte/s multiprocessor interface. The POWER4 was a CMP chip, which means that it incorporated multiple processors on a single piece of silicon.