Intel X5560 Xeon 2.8GHz Quad Core Processor

The Intel Xeon X5560 is a quad-core server-class processor clocked at 2.80GHz with Hyper-Threading support, delivering eight processing threads for workstation and server applications. It is built on Intel's Nehalem microarchitecture and uses the LGA 1366 (Socket B) interface, making it compatible with motherboards based on the Intel 5500 and 5520 chipsets. The 8MB shared L3 cache and 6.40GT/s QuickPath Interconnect (QPI) provide solid memory and I/O bandwidth for multi-threaded tasks such as virtualization, rendering, and database operations on legacy platforms.

This renewed processor serves a specific and practical purpose: keeping existing LGA 1366 systems operational at minimal cost. Whether replacing a failed CPU in a workstation or upgrading a single-core Xeon to a quad-core part in a compatible server, the X5560 offers meaningful performance at a fraction of what current-generation hardware costs. It supports dual-socket configurations on appropriate motherboards, allowing two X5560s to deliver a combined eight cores and sixteen threads. The 95-watt TDP is manageable with standard LGA 1366 cooling solutions. While it is not competitive with modern processors in efficiency or raw performance, it remains a sensible choice for users who need to maintain or modestly upgrade hardware that still meets their workload requirements.