Thanks Capt Obvious

I don't understand your comment then. I'm not trying to be sarcastic or anything.

Using either processes or threads should bear no difference in terms of die space. In a die there are cores, each core with dual streams of computation, that are interleaved to compensate for memory latency, so while one waits the other computes and vice versa. It doesn't have anything to do with processes or (virtual) threads, which are software constructs.