The Intel Pentium 4 HT Extreme Edition 3.46 was a desktop processor with 1 core, launched in October 2004, at an MSRP of $999. It is part of the Pentium 4 HT lineup, using the Gallatin EE architecture with Socket 775. Thanks to Intel Hyper-Threading the core-count is effectively doubled, to 2 threads. Pentium 4 HT Extreme Edition 3.46 has 2 MB of L3 cache and operates at 3.466 GHz. Intel is building the Pentium 4 HT Extreme Edition 3.46 on a 130 nm production process using 178 million transistors. The multiplier is locked on Pentium 4 HT Extreme Edition 3.46, which limits its overclocking capabilities.
With a TDP of 110 W, the Pentium 4 HT Extreme Edition 3.46 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 system, Pentium 4 HT Extreme Edition 3.46 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.
Neither SSE3 nor SSE4 instruction sets are supported, which will lead to problems with games not starting.