multiple (whether its dual, quad, etc.) core efficiency... this is a very interesting issue.

technology in hardware has advanced quite far. however software advancement has not been in pace. this is the results in the software not being able to take the advantage of the hardware.

in order to fully utilize multiple cores available on the processor, the software must be programmed in that manner.

but i believe that soon more and more programs will be coded with multi-core in mind.