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313079-001 Datasheet(PDF) 9 Page - Intel Corporation |
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313079-001 Datasheet(HTML) 9 Page - Intel Corporation |
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9 / 104 page  Dual-Core Intel® Xeon® Processor 5000 Series Datasheet 9 Introduction 1 Introduction The Dual-Core Intel® Xeon® Processor 5000 series are Intel dual core products for dual processor (DP) servers and workstations. The Dual-Core Intel Xeon Processor 5000 series are 64-bit server/workstation processors utilizing two physical Intel NetBurst® microarchitecture cores in one package. The Dual-Core Intel Xeon Processor 5000 series include enhancements to the Intel NetBurst microarchitecture while maintaining the tradition of compatibility with IA-32 software. Some key features include Hyper Pipelined Technology and an Execution Trace Cache. Hyper Pipelined Technology includes a multi-stage pipeline depth, allowing the processor to reach higher core frequencies. The Dual-Core Intel Xeon Processor 5000 series contain a total of 4 MB of L2 Advanced Transfer Cache, 2 MB per core. 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 667 MHz Front Side Bus (FSB) is a quad-pumped bus running off a 166 MHz system clock making 5.3 GBytes per second data transfer rates possible. In addition, enhanced thermal and power management capabilities are implemented including Thermal Monitor (TM1) and Enhanced Intel SpeedStep® technology. These technologies are targeted for dual processor (DP) systems in enterprise environments. TM1 provides efficient and effective cooling in high temperature situations. Enhanced Intel SpeedStep technology provides power management capabilities to servers and workstations. The Dual-Core Intel Xeon Processor 5000 series also include Hyper-Threading Technology (HT Technology) resulting in four logical processors per package. This feature allows multi-threaded applications to execute more than one thread per physical processor core, increasing the throughput of applications and enabling improved scaling for server and workstation workloads. More information on Hyper- Threading Technology can be found at http://www.intel.com/technology/hyperthread. Other features within the Intel NetBurst microarchitecture include Advanced Dynamic Execution, Advanced Transfer Cache, enhanced floating point and multi-media units, and Streaming SIMD Extensions 3 (SSE3). Advanced Dynamic Execution improves speculative execution and branch prediction internal to the processor. The Advanced Transfer Cache in each core is a 2 MB level 2 (L2) cache. The floating point and multi- media units include 128-bit wide registers and a separate register for data movement. Streaming SIMD3 (SSE3) instructions provide highly efficient double-precision floating point, SIMD integer, and memory management operations. Other processor enhancements include core frequency improvements and microarchitectural improvements. The Dual-Core Intel Xeon Processor 5000 series support Intel® Extended Memory 64 Technology (Intel® EM64T) 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 Extended Memory 64 Technology and its programming model can be found in the 64-bit Extension Technology Software Developer's Guide at http://developer.intel.com/ technology/64bitextensions/. In addition, the Dual-Core Intel Xeon Processor 5000 series support 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 |
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