The Intel Xeon W3503 was a server/workstation processor with 2 cores, launched in March 2009. It is part of the Xeon lineup, using the Bloomfield architecture with Socket 1366. Xeon W3503 has 4 MB of L3 cache and operates at 2.4 GHz. Intel is building the Xeon W3503 on a 45 nm production process using 731 million transistors. The multiplier is locked on Xeon W3503, which limits its overclocking capabilities.
With a TDP of 130 W, the Xeon W3503 consumes a lot of power, so good cooling is definitely needed. 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 system, Xeon W3503 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 W3503, which greatly improves virtual machine performance.