The industry"s first quad-core processor for mainstream servers provides breakthrough performance and capabilities for the ultimate in powerful dense and energy efficient servers. With the Quad-Core Intel Xeon processor 5300 series you get breakthrough performance - up to 50% greater than the industry-leading Dual-Core Intel Xeon processor in the same power envelope and up to 150% better than the competition.Primary InformationProcessor / Product Type : Processor upgrade Processor Type : Xeon Processor Clock Speed : 1.6 GHz Processor / Data Bus Speed : 1066 MHz 65 nm ProcessorProcessor Number : E5310 Multi-Core Technology : Quad-Core Processor / Socket Type : Socket 771 Processor / Package Technology : LGA Processor Installed Qty : 1 CacheCache Memory Type : L2 cache Cache Memory Installed Size : 8 MB Special FeatureCOO : MalaysiaUnited States TAA : Yes UNSPSC CodeUNSPSC Code : 43211600 Product IDUPC: 882780877238Manufacturer Part: 437943-B21