Reference: All Pentium D Models

A series of quick reference tables containing the main specs of all Pentium D processors released to date.

Here is a snippet: "Pentium D is a dual-core version of Pentium 4. Pentium D CPUs can be found using two different core versions: Smithfield and Presler. In this tutorial we will talk about these two core versions and we will also list all Pentium D models released to date."

You can check it out over at Hardware Secrets.