The key change is the lack of clock speeds in names of Intel's future CPUs. Actually, it will be replaced with a so called processor number.Lots more information over at Digit-life
The official version is that the extension of lines, especially in the desktop sector, and availability of processors based on different architectures and even cores make the situation pretty confusing. One of the examples is 4 modifications of the Pentium 4 CPU clocked at 2.8 GHz:
Pentium 4 2.8 GHz (Northwood, 512 KB L2, 533 MHz FSB)
Pentium 4 2.8A GHz (Prescott, 1 MB L2, 533 MHz FSB)
Pentium 4 2.8C (Northwood, 512 KB L2, 800 MHz FSB, Hyper-Threading)
Pentium 4 2.8E (Prescott, 1 MB L2, 800 MHz FSB, Hyper-Threading)
The difference in their parameters is great, therefore, they might have different performance, price and an area of application. Sometimes it's also used by hardware sellers to play tricks with buyers. That is why from Intel's point of view the current situation makes it necessary to redefine the conception of naming its processors in order to prevent possible mistakes and makes processor names simple and logical from an end-user's standpoint.
Intel's new processor naming system
Posted on Tuesday, Mar 30 2004 @ 00:47 CEST by Thomas De Maesschalck
Digit-Life has some concrete information regarding Intel's forthcoming changes in the naming system of their processors. This information comes from the Russian departement of Intel.