Intel ARCHITECTURE IA-32 - Manual (Page 29)

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1 IA-32 Intel
®
Architecture
Processor Family Overview
This chapter gives an overview of the features relevant to software
optimization for the current generations of IA-32 processors, including:
Intel
® Core™ Solo, Intel ® Core™ Duo, Intel ® Pentium ® 4, Intel ®
Xeon ® , Intel ® Pentium ® M, and IA-32 processors with multi-core
architecture. These features include:
• SIMD instruction extensions including MMX ™ technology,
Streaming SIMD Extensions (SSE), Streaming SIMD Extensions 2
(SSE2), and Streaming SIMD Extensions 3 (SSE3)
• Microarchitectures that enable executing instructions with high
throughput at high clock rates, a high speed cache hierarchy and the
ability to fetch data with high speed system bus
• Intel ® Extended Memory 64 Technology (Intel ® EM64T)
• Intel ® processors supporting Hyper-Threading (HT) Technology 1
• Multi-core architecture supported in Intel ® Core™ Duo, Intel ®
Pentium ® D processors and Pentium ® processor Extreme Edition 2
Intel Pentium 4 processors, Intel Xeon processors, Pentium D
processors, and Pentium processor Extreme Editions are based on Intel
NetBurst ® microarchitecture. The Intel Pentium M processor
microarchitecture balances performance and low power consumption.
1. Hyper-Threading Technology requires a computer system with an Intel processor
supporting HT Technology and an HT Technology enabled chipset, BIOS and operating
system. Performance varies depending on the hardware and software used.
2. Dual-core platform requires an Intel Core Duo, Pentium D processor or Pentium processor
Extreme Edition, with appropriate chipset, BIOS, and operating system. Performance
varies depending on the hardware and software used.