> Surprisingly high for the A15.

The DMIPS figure for the Cortex-A15 has been known for about 2 years already :-)

> Is that quote on the A15 for one, two, or four cores?

Quote from that posting: "DMIPS per MHz and core" :-)

> is it fair to assume that an e6500 based product with far more cores
> would produce even better results?

Yes, it is, as the Dhrystone benchmark scales quite linearly with the amount of cores.

> Basically, would 12 cores dual threaded equal 72 (or close to that)?

Yes, 12 dual-threaded e6500 cores would deliver 72 DMIPS per MHz.