but the Pentium D does not include Hyper-Threading. The Pentium D's two execution cores provide two completely parallel processing streams. See dual core and Pentium Processor Extreme Edition.

All Pentium 4 chips are single core, while dual-core Pentium models such as Pentium D and Pentium Processor Extreme Editions omit the "4" designation. See Pentium. Available in both 32-bit and 64 ...