HP 609132-B21 Xeon L5640 2.26GHz Six Core ProcessorEnhance Server Performance with Efficient Processing Power Introducing the HP 609132 B21 Intel Xeon L5640 Six Core Processor, designed to boost the performance of your server systems. With its efficient architecture and ample cache, this processor delivers reliable performance for demanding workloads. Specifications: Processor: Intel Xeon L5640 Six Core Clock Speed: 2. 26GHz Cache: 12MB L3 Cache QPI Speed: 5. 86GT S Socket Type: Socket B LGA 1366