The Intel Celeron 445 was a server/workstation processor with 1 core, launched in August 2008. It is part of the Celeron lineup, using the Conroe architecture with Socket 771. Celeron 445 has 512 KB of L2 cache and operates at 1867 MHz. Intel is making the Celeron 445 on a 65 nm production node using 105 million transistors. The multiplier is locked on Celeron 445, which limits its overclocking potential. With a TDP of 65 W, the Celeron 445 consumes typical power levels for a modern PC. Intel's processor supports DDR1, DDR2 and DDR3 memory with a dual-channel interface. Actual memory technology support depends on the chosen motherboard, because the memory controller is located on the motherboard (not in the processor). For communication with other components in the machine, Celeron 445 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. The SSE4 instruction set is not supported, which can cause problems with modern games, as they require that capability. Hardware virtualization is available on the Celeron 445, which greatly improves virtual machine performance.