What is the difference between pentium d&pentium 4?
When the Pentium D debuted in 2005, the Pentium 4 held Intel’s speed record. But the Pentium D, albeit slower, had the benefit of being two processors in one.SpeedThe first Pentium D had a clock speed of 2.8 GHz (billion cycles per second). The chip hit the shelves on the same day as the fastest Pentium 4, at 3.8 GHz. Still, the P4 did not enjoy a decisive performance advantage over the PD because of the latter’s dual cores.CoresThe core is the part of the processor where the actual calculations take place. The P4 uses one core. The PD has two. For this reason, the PD performs on par with the faster P4 when running “multi-threaded” applications, whose operations the CPU is meant to divide and process separately.Power ConsumptionAccording to TechReport.com, the PD is more energy efficient than the P4, at times outperforming it without requiring more power.CostDespite being a close match in performance, the two processors were worlds apart in terms of cost.
