All objects with Presler chip
The successor of the 'Smithfield' core. Intel used two 65nm 'Cedar Mill'-cores (successor of 'Prescott') in order to create the Pentium D 'Presler'. Basically Intel did exactly the same before with the 'Smithfield' by gluing two 90nm 'Prescott' together.
A big advantage for Intel was that 'Presler' had two seperate dies, where 'Smithfield' has one large die. If there is one failure in one part 'Smithfield' core then everything can be thrown away. In case of 'Presler', Intel only have to dispatch 50%.