Intel X7460 AD80582KH067007 Data Sheet

Product codes
AD80582KH067007
Page of 136
Intel® Xeon® Processor 7400 Series Datasheet
9
Introduction
1
Introduction
ALL INFORMATION IN THIS DOCUMENT IS SUBJECT TO CHANGE.
The Intel® Xeon® Processor 7400 Series is a four or six core product for multi-
processor servers. The processor is a single die based on Intel’s 45 nanometer process 
technology combining high performance with the power efficiencies of a low-power 
microarchitecture. The processor maintains the tradition of compatibility with IA-32 
software. Some key features include on-die, 32 KB Level 1 instruction data cache per 
core and 3 MB of shared Level 2 cache per two processor cores with Advanced Transfer 
Cache Architecture. The Intel® Xeon® Processor 7400 Series will be available with 
12 MB or 16 MB of on-die level 3 (L3) cache. The processor’s Data Prefetch Logic 
speculatively fetches data to the L2 cache before an L1 cache requests occurs, resulting 
in reduced bus cycle penalties and improved performance. The 1066 MTS 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.
Enhanced thermal and power management capabilities are implemented including 
Intel® Thermal Monitor (TM1), Intel® Thermal Monitor 2 (TM2) and Enhanced Intel 
SpeedStep® Technology. TM1 and TM2 provide efficient and effective cooling in high 
temperature situations. Enhanced Intel SpeedStep Technology allows trade-offs to be 
made between performance and power consumption. This may lower average power 
consumption (in conjunction with OS support).
Processor features include Advanced Dynamic Execution, enhanced floating point and 
multi-media units, Streaming SIMD Extensions 2 (SSE2), Streaming SIMD Extensions 3 
(SSE3) and Streaming SIMD Extensions 4 (SSE4). SSE4 extends the Intel
®
 64 
instruction set to accelerate applications that involve graphics, video, 3D imaging, and 
Web services. 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 Intel® Xeon® Processor 7400 Series supports Intel
®
 64 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 and its programming model can be found in the Intel
®
 64 
and IA-32 Intel
®
Architectures Software Developer's Manual.
In addition, the Intel® Xeon® Processor 7400 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 Intel® Xeon® Processor 7400 Series supports Intel
®
 Virtualization Technology for 
hardware-assisted virtualization within the processor. Intel Virtualization Technology is 
a set of hardware enhancements that can improve virtualization solutions. Intel 
Virtualization Technology is used in conjunction with Virtual Machine Monitor software 
enabling multiple, independent software environments inside a single platform. Further 
details on Intel Virtualization Technology can be found at