Description:HP Intel Xeon X5570 DL170h G6 (2.93GHz/4-core/8MB/95W)Full Processor Option KitPart Number(s)Option Part# 507889-B21 HP Processor Kits: Manufacturer Part# 507889-B21 This is the full processor option kit. It includes the Processor(s), Heat-Sink(s), Fan(s), Thermal paste Overview: This 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 you get breakthrough performance - up to 50% greater than the industry-leading Dual-Core Intel Xeon processor in the same power envelope. Specifications: CategoryProliant Processor Sub-CategoryXeon GenerationG6 Part Number507889-B21 Products ID473025 Product TypeProcessor Board Processor TypeIntel Xeon Processor CoreQuad-Core Processor Qty1 Clock Speed2.93GHz QuickPath Interconnect6.40GT/s L1 Cache256KB L2 Cache1MB L3 Cache8MB 64-bit ProcessingYes Process Technology45nm Processor SocketSocket B LGA-1366 Thermal Design Power95W Enlarge Image of Part# 507889-B21