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| | Dual cores and dual buses: The bolt-on story |
 | | The standard Smithfield is the same, except HT is disabled, even with their separate bus interfaces, while the next round, Presler, is two separate CPU chips in one package. |
 | | So, in a way, neither of these is actually a dual-core CPU, like POWER5, Montecito or dual-core Opteron would be: Smithfield is a dual CPU chip, where two totally separate processors happen to share a single chip, and Presler is a dual-chip DCM (dual-chip module). |
 | | Simply, it is a three-load bus, just like with Xeon DP dual-CPU systems, except that in this case, the situation is a bit simpler for the traces, as two CPU buses end in the same package. |
| www.theinquirer.net /?article=22020 (700 words) |
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