They did a slide of this at last IDF. You can probably do the research better than Wouter. Try Anandtech, I think I remember them showing something on it.
While homeworks is apparently not a particular strength on your side, it's premature to blame Wouter being not able to do it imo. At least it is easy for him to come up with more than a vague remembering of an IDF slide you have to offer.
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