The AMD Opteron 13KS EE was a server/workstation processor with 4 cores, launched in April 2009. It is part of the Opteron lineup, using the Suzuka architecture with Socket Fr2. Opteron 13KS EE has 6 MB of L3 cache and operates at 2000 MHz. AMD is making the Opteron 13KS EE on a 45 nm production node using 758 million transistors. The silicon die of the chip is not fabricated at AMD, but at the foundry of GlobalFoundries. The multiplier is locked on Opteron 13KS EE, which limits its overclocking potential. With a TDP of 50 W, the Opteron 13KS EE consumes typical power levels for a modern PC. AMD's processor supports DDR2 and DDR3 memory with a dual-channel interface. The highest officially supported memory speed is 1333 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. Actual memory technology support depends on the chosen motherboard, the processor itself supports multiple memory types, but most motherboards have only one kind of slot. For communication with other components in the machine, Opteron 13KS EE uses a PCI-Express Gen 2 connection. Although neither the processor nor its chipsets support integrated graphics, certain motherboards include dedicated graphics chipset that can provide some basic display output functionality. Hardware virtualization is available on the Opteron 13KS EE, which greatly improves virtual machine performance.