Pentium D

* Dual-core microprocessor
* No Hyper-Threading
* 800(4x200) MHz front side bus

* Smithfield - 90 nm process technology (2.66–3.2 GHz)
o Introduced May 26, 2005
o 2.66–3.2 GHz (model numbers 805-840)
o Number of Transistors 230 million
o 1 MB x 2 (non-shared, 2 MB total) L2 cache
o Cache coherency between cores requires communication over the FSB
o Performance increase of 60% over similarly clocked Prescott
o 2.66 GHz (533 MHz FSB) Pentium D 805 introduced December 2005
o Contains 2x Prescott dies in one package

* Presler - 65 nm process technology (2.8–3.6 GHz)
o Introduced January 16, 2006
o 2.8–3.6 GHz (model numbers 915-960)
o Number of Transistors 376 million
o 2 MB x 2 (non-shared, 4 MB total) L2 cache
o Contains 2x Cedar Mill dies in one package