Cisco Xeon DP 5600 E5620 Quad-core (4 Core) 2.40 GHz Processor Upgrade - 12 MB L3 Cache - 1 MB L2 Cache - 256 KB L1 Cache - 64-bit Processing - 32 nm - Socket B LGA-1366 - 80 W

The Intel® Xeon® processor 5600 series automatically regulates power consumption and intelligently adjusts server performance according to application demand, maximizing both energy cost savings and performance. Based on new 32nm Intel® microarchitecture, the Intel Xeon processor 5600 series reduces energy cost over single-core servers by automatically shifting the CPU and memory into the lowest available power state, while intelligently adjusting performance to application needs.

In addition, built-in hardware-assisted virtualization technology gives you the power and flexibility to virtualize different generations of Intel® Xeon® processor-based servers within the same virtualization pool, giving you the ability to migrate workloads to fewer servers at night to save energy.