How do you know? In a true 12 core design do you think it would be over 70%? Maybe it uses four cores, and the HT-threads easily gets maxed out. Four cores is around 66% of a quad.
My point is, having a hexa core being utilized 70% can only mean at least 4 cores. It could be 12, but there is no way for you to see it, and since it isn't 100%, I seems like it isn't using all cores.
Finally, chips from AMD has always been nicely ordered, pointing at a mostly hand made layout. I can imagine that it leads to an uneven power usage and unnecessary long circuits and timings. And wastes die space.
Bookmarks