Power and Performance

Chapter 2

Intel® Pentium® Processors

Abstract

This chapter builds on the previous chapter by exploring the Intel(R) Pentium(R) processor family. The chapter begins by looking at the changes introduced by the Intel(R) Pentium(R), Intel(R) Pentium(R) Pro, and Intel(R) Pentium(R) 4 processors. Topics covered include the superscalar execution pipeline, out-of-order execution, μops, and Intel(R) Hyper-Threading. The chapter ends with the extension from 32- to 64-bit processors.

Keywords

Pentium(R)

Pentium(R) Pro

i686

Pentium(R) II

Pentium(R) III

Pentium(R) 4

μops

Hyper-Threading

Out-of-order execution

superscalar

Chapter Contents

2.1 Intel® Pentium®   32

2.1.1 Superscalar   33

2.2 Intel® Pentium® Pro   34

2.2.1 PAE   34

2.2.2 μops   35

2.2.3 ...