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Introduction
1
Introduction
The Dual-Core Intel® Xeon® Processor 5100 Series are 64-bit server/workstation
processors utilizing two Intel microarchitecture cores. These processors are based on
Intel's 65 nanometer process technology combining high performance with the power
efficiencies of a low-power microarchitecture. The Dual-Core Intel® Xeon® Processor
5100 Series maintain the tradition of compatibility with IA-32 software. Some key
features include on-die, 32 KB Level 1 instruction and data caches and 4 MB Level 2
cache with Advanced Transfer Cache Architecture. The processors' 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 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. Some lower speed SKU's are
available which support a 1066 MHz Front Side Bus (FSB). This is a quad-pumped bus
running off a 266 MHz system clock making 8.5 GBytes per second data transfer rates
possible. The Dual-Core Intel® Xeon® Processor 5160 offers higher clock frequencies
than the Dual-Core Intel
for the performance optimized segment.
Enhanced thermal and power management capabilities are implemented including
Thermal Monitor (TM1), Thermal Monitor 2 (TM2) and Enhanced Intel SpeedStep
Technology. These technologies are targeted for dual processor in enterprise
environments. TM1 and TM2 provide efficient and effective cooling in high temperature
situations. Enhanced Intel SpeedStep
capabilities to servers and workstations.
Dual-Core Intel
Execution, enhanced floating point and multi-media units, Streaming SIMD Extensions
2 (SSE2) and Streaming SIMD Extensions 3 (SSE3). 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 Dual-Core Intel
64 Technology (Intel
enhancement allows the processor to execute operating systems and applications
written to take advantage of the 64-bit extension technology. Further details on Intel
Extended Memory 64 Technology and its programming model can be found in the 64-
bit Extension Technology Software Developer's Guide at
technology/64bitextensions/.
In addition, the Dual-Core Intel
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
149308.htm.
The Dual-Core Intel
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
®
®
Dual-Core Intel
Xeon
Processor 5100 Series Datasheet
®
®
Xeon
Processor 5100 Series for platforms that are targeted
®
®
®
Xeon
Processor 5100 Series features include Advanced Dynamic
®
®
Xeon
Processor 5100 Series support Intel
®
EM64T) as an enhancement to Intel's IA-32 architecture. This
®
Xeon
http://www.intel.com/cd/ids/developer/asmo-na/eng/
®
®
Xeon
Processor 5100 Series support Intel
Technology provides power management
http://developer.intel.com/
®
Processor 5100 Series support the Execute
®
®
Extended Memory
®
Virtualization
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