The Intel Pentium D 945 was a desktop processor with 2 cores, launched in July 2006, at an MSRP of $163. It is part of the Pentium D lineup, using the Presler architecture with Socket 775. Pentium D 945 has 2 MB of L2 cache and operates at 3.4 GHz. Intel is making the Pentium D 945 on a 65 nm production node using 376 million transistors. The multiplier is locked on Pentium D 945, which limits its overclocking potential.
With a TDP of 95 W, the Pentium D 945 consumes a good deal of power, so decent cooling is 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 machine, Pentium D 945 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.