The Intel Xeon L3406 was a desktop processor with 2 cores, launched in March 2010, at an MSRP of $189. It is part of the Xeon lineup, using the Clarkdale architecture with Socket 1156. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 4 threads. Xeon L3406 has 4 MB of L3 cache and operates at 2.266 GHz by default, but can boost up to 2.533 GHz, depending on the workload. Intel is making the Xeon L3406 on a 32 nm production node using 382 million transistors. The multiplier is locked on Xeon L3406, which limits its overclocking potential. With a TDP of 30 W, the Xeon L3406 consumes only little energy. Intel's processor supports DDR3 memory with a dual-channel interface. The highest officially supported memory speed is 1066 MT/s, but with overclocking (and the right memory modules) you can go even higher. 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 computer, Xeon L3406 uses a PCI-Express Gen 2 connection. This processor features the Intel HD integrated graphics solution. Hardware virtualization is available on the Xeon L3406, which greatly improves virtual machine performance. Additionally, IOMMU virtualization (PCI passthrough) is supported, so that guest virtual machines may directly use host hardware.