457941-L21 HP 2.0GHz 1333MHz FSB 12MB L2 Cache Socket LGA771 Intel Xeon E5405 Quad-Core Processor

Intelligent next-generation Intel?? microarchitecture adapts to the workload, automatically increasing processor frequency for greater performance.Better performance enabled by Intel?? Turbo Boost Technology, increasing processor frequency and enabling faster speeds when conditions allow.Lower energy costs while minimizing impact to performance by automatically putting processor and memory into the lowest available power state.Individual cores are reduced to near-zero power independent of other operating cores.Virtualize different generations of Intel?? Xeon?? processor