The Intel Pentium 4 HT Extreme Edition 3.73 was a desktop processor with 1 core, launched in February 2005, at an MSRP of $999. It is part of the Pentium 4 HT lineup, using the Prescott EE architecture with Socket 775. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 2 threads. Pentium 4 HT Extreme Edition 3.73 has 2 MB of L2 cache and operates at 3.733 GHz. Intel is building the Pentium 4 HT Extreme Edition 3.73 on a 90 nm production process using 169 million transistors. The multiplier is locked on Pentium 4 HT Extreme Edition 3.73, which limits its overclocking capabilities. With a TDP of 115 W, the Pentium 4 HT Extreme Edition 3.73 consumes a lot of power, so good cooling is definitely needed. 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 computer, Pentium 4 HT Extreme Edition 3.73 uses a PCI-Express N/A 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.