Pentium D

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

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

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