Intel X5460 AT80574KJ087N Data Sheet

Product codes
AT80574KJ087N
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Introduction
The Quad-Core Intel® Xeon® Processor 5400 Series is a server/workstation processor 
utilizing four 45-nm Hi-k next generation Intel® Core™ microarchitecture cores. The 
processor is manufactured on Intel’s 45 nanometer process technology combining high 
performance with the power efficiencies of a low-power microarchitecture. The Quad-
Core Intel® Xeon® Processor 5400 Series maintains the tradition of compatibility with 
IA-32 software. Some key features include on-die, primary 32-kB instruction cache and 
32-kB write-back data cache in each core and 12 MB (2 x 6MB) Level 2 cache with 
Intel
® 
Advanced Smart Cache architecture. The processors’ Data Prefetch Logic 
speculatively fetches data to the L2 cache before an L1 cache requests occurs, resulting 
in reduced effective bus latency and improved performance. The 1066 MHz Front Side 
Bus (FSB) is a quad-pumped bus running off a 266 MHz system clock making 
8.5 GBytes per second data transfer rates possible. The 1333 MHz Front Side Bus (FSB) 
is a quad-pumped bus running off a 333 MHz system clock making 10.66 GBytes per 
second data transfer rates possible. The 1600 MHz Front Side Bus (FSB) is a quad-
pumped bus running off a 400 MHz system clock making 12.80 GBytes per second data 
transfer rates possible.
Enhanced thermal and power management capabilities are implemented including 
Intel
®
 Thermal Monitor 1, Intel® Thermal Monitor 2 and Enhanced Intel SpeedStep
®
 
Technology. These technologies are targeted for dual processor configurations in 
enterprise environments. Intel
®
 Thermal Monitor 1 and Intel® Thermal Monitor 
provide efficient and effective cooling in high temperature situations. Enhanced Intel 
SpeedStep Technology provides power management capabilities to servers and 
workstations.
Quad-Core Intel® Xeon® Processor 5400 Series features include Intel
®
 Wide Dynamic 
Execution, enhanced floating point and multi-media units, Streaming SIMD Extensions 
2 (SSE2), Streaming SIMD Extensions 3 (SSE3), and Streaming SIMD Extensions 4.1 
(SSE4.1). Advanced Dynamic Execution improves speculative execution and branch 
prediction internal to the processor. The floating point and multi-media units include 
128-bit wide registers and a separate register for data movement. SSE3 instructions 
provide highly efficient double-precision floating point, SIMD integer, and memory 
management operations. 
The Quad-Core Intel® Xeon® Processor 5400 Series support Intel
®
 64 Architecture as 
an enhancement to Intel's IA-32 architecture. This enhancement allows the processor 
to execute operating systems and applications written to take advantage of the 64-bit 
extension technology. Further details on Intel
®
 64 Architecture and its programming 
model can be found in the Intel
®
 64 and IA-32 Architectures Software Developer’s 
Manual, at 
.
In addition, the Quad-Core Intel® Xeon® Processor 5400 Series supports the Execute 
Disable Bit functionality. When used in conjunction with a supporting operating system, 
Execute Disable allows memory to be marked as executable or non executable. This 
feature can prevent some classes of viruses that exploit buffer overrun vulnerabilities 
and can thus help improve the overall security of the system. Further details on 
Execute Disable can be found at 
The Quad-Core Intel® Xeon® Processor 5400 Series support Intel
®
 Virtualization 
Technology for hardware-assisted virtualization within the processor. Intel Virtualization 
Technology is a set of hardware enhancements that can improve virtualization