The Intel Celeron E1600 was a desktop processor with 2 cores, launched in May 2009. It is part of the Celeron lineup, using the Allendale architecture with Socket 775. Celeron E1600 has 512 KB of L2 cache and operates at 2.4 GHz. Intel is building the Celeron E1600 on a 65 nm production process using 105 million transistors. The multiplier is locked on Celeron E1600, which limits its overclocking capabilities. With a TDP of 65 W, the Celeron E1600 consumes typical power levels for a modern PC. Intel's processor supports DDR1, DDR2 and DDR3 memory with a dual-channel interface. For communication with other components in the machine, Celeron E1600 uses a PCI-Express Gen 2 connection. Although the processor doesn't come with integrated graphics, certain motherboards with compatible chipsets can provide this capability. The SSE4 instruction set is not supported, which can cause problems with modern games, as they require that capability.