Intel Pentium 4 Processor Extreme Edition on 0.13 Micron Process in the 775-Land Package Datasheet

Datasheet 11
Introduction
1 Introduction
The Intel
®
Pentium
®
4 processor Extreme Edition on 0.13 micron process in 775-land package is a
follow on to the Intel
®
Pentium
®
4 processor Extreme Edition in the 478-pin package with Intel
NetBurst
®
microarchitecture. The Pentium 4 processor Extreme Edition on 0.13 micron process in
775-land package uses Flip-Chip Land Grid Array (FC-LGA4) package technology, and plugs into
a 775-land surface mount, Land Grid Array (LGA) socket, referred to as the LGA775 socket. The
Pentium 4 processor Extreme Edition in the 775-land package, like its predecessor, the Pentium 4
processor Extreme Edition in the 478-pin package, is based on the same Intel 32-bit
microarchitecture and maintains the tradition of compatibility with IA-32 software.
Note: In this document the Intel
®
Pentium
®
4 processor Extreme Edition on 0.13 micron process in the
775-land package is also referred to as Pentium 4 processor Extreme Edition in the 775-land
package (or simply as “processor”).
The Pentium 4 processor Extreme Edition in the 775-land package supports Hyper-Threading
Technology
1
. Hyper-Threading Technology allows a single, physical processor to function as two
logical processors. While some execution resources (such as caches, execution units, and buses)
are shared, each logical processor has its own architecture state with its own set of general-purpose
registers, control registers to provide increased system responsiveness in multitasking
environments, and headroom for next generation multithreaded applications. Intel recommends
enabling Hyper-Threading Technology with Microsoft Windows* XP Professional or Windows*
XP Home, and disabling Hyper-Threading Technology via the BIOS for all previous versions of
Windows operating systems. For more information on Hyper-Threading Technology, see
www.intel.com/info/hyperthreading. Refer to Section 6.1, for Hyper-Threading Technology
configuration details.
The Intel NetBurst microarchitecture features include hyper pipelined technology, a rapid
execution engine, 800 MHz system bus, and an execution trace cache. The hyper pipelined
technology doubles the pipeline depth in the Pentium 4 processor Extreme Edition in the 775-land
package, allowing the processor to reach much higher core frequencies. The rapid execution engine
allows the two integer ALUs in the processor to run at twice the core frequency, which allows
many integer instructions to execute in 1/2 clock tick. The 800 MHz or 1066 MHz system bus is a
quad-pumped bus running off a 200 MHz or 266 MHz system clock making 6.4 GB/sec or 8.5 GB/
sec data transfer rates possible. The execution trace cache is a first level cache that stores
approximately 12k decoded micro-operations, which removes the instruction decoding logic from
the main execution path, thereby increasing performance.
Additional features within the Intel NetBurst microarchitecture include advanced dynamic
execution, advanced transfer cache, enhanced floating point and multi-media unit, and Streaming
SIMD Extensions 2 (SSE2). The advanced dynamic execution improves speculative execution and
branch prediction internal to the processor. The advanced transfer cache is a 512-KB, on-die Level
2 (L2) cache. A new floating point and multi media unit has been implemented which provides
superior performance for multi-media and mathematically intensive applications. Finally, SSE2
adds 144 new instructions for double-precision floating point, SIMD integer, and memory
management.