Intel 64 and IA-32 Architectures Software Developers Manual Volume 1, Basic Architecture

2-4 Vol. 1
INTEL
®
64 AND IA-32 ARCHITECTURES
• The Intel Celeron processor family focused on the value PC market segment.
Its introduction offers an integrated 128 KBytes of Level 2 cache and a plastic pin
grid array (P.P.G.A.) form factor to lower system design cost.
• The Intel Pentium III processor introduced the Streaming SIMD Extensions
(SSE) to the IA-32 architecture. SSE extensions expand the SIMD execution
model introduced with the Intel MMX technology by providing a new set of 128-bit
registers and the ability to perform SIMD operations on packed single-precision
floating-point values. See Section 2.2.4, “SIMD Instructions.”
• The Pentium III Xeon processor extended the performance levels of the IA-32
processors with the enhancement of a full-speed, on-die, and Advanced Transfer
Cache.
2.1.7 The Intel
®
Pentium
®
4 Processor Family (2000-2006)
The Intel Pentium 4 processor family is based on Intel NetBurst microarchitecture;
see Section 2.2.2, “Intel NetBurst
®
Microarchitecture.”
The Intel Pentium 4 processor introduced Streaming SIMD Extensions 2 (SSE2); see
Section 2.2.4, “SIMD Instructions.” The Intel Pentium 4 processor 3.40 GHz,
supporting Hyper-Threading Technology introduced Streaming SIMD Extensions 3
(SSE3); see Section 2.2.4, “SIMD Instructions.”
Intel 64 architecture was introduced in the Intel Pentium 4 Processor Extreme Edition
supporting Hyper-Threading Technology and in the Intel Pentium 4 Processor 6xx and
5xx sequences.
Intel
®
Virtualization Technology (Intel
®
VT) was introduced in the Intel Pentium 4
processor 672 and 662.
2.1.8 The Intel
®
Xeon
®
Processor (2001-2006)
Intel Xeon processors (with exception for dual-core Intel Xeon processor LV, Intel
Xeon processor 5100 series) are based on the Intel NetBurst microarchitecture; see
Section 2.2.2, “Intel NetBurst
®
Microarchitecture.” As a family, this group of IA-32
processors (more recently Intel 64 processors) is designed for use in multi-processor
server systems and high-performance workstations.
The Intel Xeon processor MP introduced support for Hyper-Threading Technology;
see Section 2.2.5, “Hyper-Threading Technology.”
The 64-bit Intel Xeon processor 3.60 GHz (with an 800 MHz System Bus) was used to
introduce Intel 64 architecture. The Dual-Core Intel Xeon processor includes dual
core technology. The Intel Xeon processor 70xx series includes Intel Virtualization
Technology.
The Intel Xeon processor 5100 series introduces power-efficient, high performance
Intel Core
microarchitecture. This processor is based on Intel 64 architecture; it
includes Intel Virtualization Technology and dual-core technology.