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Intel Pentium D

This page will show all objects that classify as Intel Pentium D. The Pentium D has been made by Intel, a company that has been around since 1968 and is today's biggest processor company. They started with the i4004, a microprocessor for calculators and such, but got popular with the 8086 and 8088. IBM used that processor in it's IBM-PC and clones of the IBM PC obviously used the same processor as well. Thanks to this evolution Intel could find it's way on the market and develop successors of the 8086 all up to todays Core i7.

Intel Pentium D 920 (2.8 GHz) 'QKDH'

An 65nm dual-core 'Netburst' engineering sample with CPUID 0F62h and speedstep bug. In other words: B1 stepping of the Pentium D 920.

This Intel Confidential QKDH got me on the LGA775 track I'm on now. I obtained this sample at the time when the Intel Pentium D 930 and AMD Athlon64 X2 3800+ were around 200 euro. This sample was a cheaper than both so I switched to LGA775. Because of upgrading and putting my 'old' desktop hardware in the server I bought other LGA775 parts. This QKDH is the first LGA775 CPU, first Netburst CPU, first dual-core and first Intel Confidential I obtained.

Many people think that engineering samples are good for overclocking. This processor is the perfect example for that because this one is far from a good overclocker. For 24/7 work it only gets to 3600MHz which is peanuts, with good cooling, for practically any other 90nm or 65nm retail model! Another sidenote: multipliers are not always unlocked on engineering samples. Most samples can only lower in multiplier which is common for retail CPU's as well due to energy saving techniques like Powernow! and Speedstep. > Read more

Intel Pentium D 830 (3 GHz) 'QEJB'

The first dual-core x86 desktop processor Intel released is the Pentium Extreme Edition 840. This CPU is technically identical to the Pentium D except that the Pentium Extreme Edition has hyper-threading technology enabled.

The normal Pentium D's were launched at May 26th of 2005. Just a little before AMD released their dual-core Athlon64 X2.

'Smithfield', codename of this CPU, was a job with haste. Intel needed to get a dual-core chip on the market as fast as possible. Due to this the Pentium D 800-series weren't optimized in terms of manufacturing. The Pentium D is dual-core but consists of two Pentium 4's that are sort of melted together. This causes higher production costs as the whole chip is worthless in case one core is not working properly. Intel fixed this issue in the newer 65nm Presler Pentium D's (900-series) which has two separate Pentium 4 cores. Now Intel is able to select any Pentium 4 core they want (the best samples for the Extreme Edition CPU's for example) and they don't have to waste one Pentium 4 core in case the other is damaged.

Energy consumption of this CPU is pretty high. Not surprising though because it's based on two 90mn Prescott Pentium 4's. > Read more