The Intel Xeon L5506 was a server/workstation processor with 4 cores, launched in March 2009. It is part of the Xeon lineup, using the Gainestown architecture with Socket 1366. To further increase overall system performance, up to two Xeon L5506 CPUs can work together in a multi-processor (SMP) configuration. Xeon L5506 has 4 MB of L3 cache and operates at 2.133 GHz. Intel is making the Xeon L5506 on a 45 nm production node using 731 million transistors. The multiplier is locked on Xeon L5506, which limits its overclocking potential. With a TDP of 60 W, the Xeon L5506 consumes typical power levels for a modern PC. Intel's processor supports DDR3 memory with a triple-channel interface. ECC memory is supported, too, which is an important capability for mission-critical systems, to avoid data corruption. For communication with other components in the machine, Xeon L5506 uses a PCI-Express Gen 2 connection. This processor lacks integrated graphics, you might need a graphics card. Hardware virtualization is available on the Xeon L5506, which greatly improves virtual machine performance.