Note that Core Duo and Core 2 Duo chips are not the same (see Intel ... A low voltage Xeon LV chip that used the same microarchitecture as the Core Duo was also introduced for blade servers.

the 64-bit Core 2 family, introduced in mid-2006, was a major departure from the previous Core Duo chips. Using the Penryn microarchitecture, Core 2 chips became available in single, dual and quad ...

Previously, at Protocol, The Wall Street Journal, and Wired. The Core 2 Duo does get a couple of upgrades, mostly by virtue of overall technological progress — Migicovsky says the new watch will ...

The new Pebble Core 2 Duo and Core Time 2 are modelled after the Pebble 2 from 2016 and the Pebble Time 2 from 2017.