[greglindahl]

Intel has done that in the past, actually, their first "dual core" chip (2005) was actually two chips in a package.

https://en.wikipedia.org/wiki/Pentium_D

[hajile]

There was a major difference though. Intel's chips communicated over the front-side-bus (not a great solution considering how FSB was already far inferior to HyperTransport).

[greglindahl]

Sure, that's why the startup I was one of the founders of in that era built a HyperTransport-attached InfiniBand adapter. Intel wasn't very competitive in the supercomputing space back then.