The 64-bit Intel ® Xeon TM ProcessorProduct OverviewThe 64-bit Intel ® Xeon TM processor, with innovationssuch as 2 MB of integrated L2 cache, Hyper-Threading Technology, Intel ® EM64T, 1 and EnhancedIntel SpeedStep ® technology, 2 is Intel’s newestprocessor for high-performance servers and workstations.This processor is complemented by theIntel ® E7520, E7525, and E7320 chipsets, eachof which offers support for dual 64-bit Intel Xeonprocessors, PCI Express* I/O technology, nextgenerationDDR2 memory, and a full complementof RAS features for high-performance, highly reliableserver environments.The 64-bit Intel ® Xeon TM ProcessorCustomer Needs and Objectives■ Performance, reliability, versatility,and low total cost of ownership (TCO)■ Computing capabilities beyond thoseof “servers” based on desktop PCs■ Larger available memory to support both32-bit and 64-bit applicationsReasons to Buy or Upgrade■ Rapid data throughput and higher systemperformance through an 800-MHz system bus■ Faster server response through Hyper-Threading Technology■ Increased memory addressability andsupport for 32-bit and 64-bit applicationsthrough Intel EM64T 1Product FeaturesThanks to the following features, the 64-bit Intel Xeon processor delivers performance, headroom,and versatility for front-end applications, small-business servers, and high-performance computing.■ Dual-processing capability■ An 800-MHz system bus and PCI Express*I/O interconnect technology■ Hyper-Threading Technology■ Intel EM64T 1■ Enhanced Intel SpeedStep technology, 2which helps to reduce power consumptionwhile maintaining system performance4
Advantages of Server Platforms Based on the 64-bit Intel ® Xeon TM ProcessorServer platforms based on the 64-bit Intel ® Xeon TM processor with an 800-MHz system bus and an Intel ® E7520, E7525, or E7320 chipsetoffer a vast number of advantages for businesses, departments, and workgroups.Feature Description BenefitDual-processor capability Supports the installation of up to two processors per system Delivers increased performance and room to growHyper-Threading Technology Thread-level parallelism on each processor Helps to provide faster server response for an enhanceduser experienceIntel ® EM64T 1Demand-based switching (DBS) withEnhanced Intel SpeedStep ® technology 22-MB L2 cache800-MHz system busPCI Express*PCI Express hot-swap on two ports 3PCI Express x16 graphics 4DDR2 400 memory supportStreaming SIMD Extensions 3Intel ® x4 SDDC memory technologyRetry on double error detect1. 64-bit Intel ® Xeon TM processors with Intel ® EM64T require a computer system with a processor,chipset, BIOS, OS, device drivers, and applications enabled for Intel EM64T. Processor will notoperate (including 32-bit operation) without an Intel EM64T-enabled BIOS. Performance will varydepending on your hardware and software configurations. Intel EM64T-enabled OS, BIOS, devicedrivers, and applications may not be available. Check with your vendor for more information.Register and pointer size increased from 32 to 64 bits;eight new SSE and general-purpose registers anddouble-precision (64-bit) integer supportEnables operating system to dynamically lower CPUspeed/voltage states based on actual processor utilizationMore data stored closer to the processor execution units forfaster data access and less need for accessing system memory6.4 GB/s bandwidth to support high-performance CPU,memory, graphics, and I/OLatest-generation I/O technology for improved bandwidthand reduced latencyEnables replacement of PCI Express card while systemis runningLatest-generation high-speed graphics interconnect forworkstations with up to 2x the bandwidth of AGP 8X2. Enhanced Intel SpeedStep ® technology is available on Intel ® Xeon TM processorswith an 800-MHz system bus at operating frequencies of 3.40 GHz and above.3. Hot-swap support may vary according to server-board implementation.4. PCI Express* x16 graphics capability is available on Intel ® E7525 chipset-based systems.5. Performance tests and ratings are measured using specific computer systems and/orcomponents and reflect the approximate performance of Intel ® products as measuredDelivers greater application flexibility, with supportfor increased memory addressabilityHelps to reduce power consumption while maintaining performancefor lower power costs and high-quality system acousticsSupports faster server response, more users,and enhanced scalabilityEnables rapid data throughput for higher system performanceFacilitates the efficient processing of server data and anupgrade path for future bandwidth-intensive I/O technologyAllows continued server operation to maintain uptime and helpprotect against data lossAddresses bandwidth demands of emerging graphics applications20% greater peak memory bandwidth and up toOffers support for more transactions involving larger data sets40% lower power consumption vs. DDR 266/333 5,6 while consuming less powerLatest-generation instruction set for acceleratedCPU executionECC algorithm for allowing system to recover fromincorrect data reads on a single x4 SDRAM deviceAutomatic retry on uncorrectable double memory errors;retry may return only a single error, allowing for an ECCor SDDC correctionSupports higher-performance multimedia, encryption/decryption, and compute-intensive graphicsAllows continued server operation to maintain uptimeand help protect against data lossHelps to decrease the likelihood of system crashesdue to memory errorsMemory sparing 7 Allows data from a failing DIMM to be copied to a spare DIMM Enables the postponement of downtime related toa failed DIMM until the next scheduled downtimeMemory mirroring 7Enables a complete copy of system memory contentsto be maintained on each memory channelAutomatically avoids system memory data loss if a DIMM failsDual-channel failover tosingle-channel operationThermal Monitor 2Enables system to continue running on a single memorychannel if one channel failsDynamically adjusts processor frequency and voltage on an unusualcondition, such as higher-than-normal ambient air temperaturesEnables the postponement of downtime related to a failedmemory channel until the next scheduled downtimeHelps to prevent long-term processor damage and improvessystem availability in such a conditionby those tests. Any difference in system hardware or software design or configurationmay affect actual performance. Buyers should consult other sources of informationto evaluate the performance of systems or components they are consideringpurchasing. For more information on performance tests and on the performanceof Intel products, visit: ww.intel.com/performance/resources/limits.htm6. Source: Micron Technology, Inc.—Memory Trends, Drivers & Solutions, April 2004.7. This feature is available only on systems based on the Intel ® E7520 chipset.5The 64-bit Intel ® Xeon TM Processor
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