Что такое ядро Harpertown в серверных процессорах

Это не технология, а кодовое название ядра.

On 11 November 2007 Intel presented Yorkfield based Xeons - called Harpertown (product code 80574) - to the public.[9] This family consists of dual die quad-core CPUs manufactured on a 45 nm process and featuring 1333 MHz to 1600 MHz front-side buses, with TDP rated from 50 W to 150 W depending on the model. These processors fit in the LGA 771 socket. All models feature Intel 64 (Intel's x86-64 implementation), the XD bit, and Virtualization Technology, as well as the Demand Based Switching, except the E5405, which lacks this feature[15]. The supplementary character in front of the model-number represents the thermal rating: an L depicts an TDP of 50 W, an E depicts 80 W whereas a X is 120 W TDP or above. The speed of 3.00 GHz comes as four models, two models with 80 W TDP two other models with 120 W TDP with 1333 MHz or 1600 MHz front-side bus respectively. The fastest Harpertown is the X5492 whose TDP of 150 W is higher than those of the Prescott-based Xeon DP but having twice as many cores. (The X5482 is also sold under the name "Core 2 Extreme QX9775" for use in the Intel SkullTrail system.)