[IshKebab]

Not sure you read that chart right. It's slower because it's much lower power.

Out of order execution gives on the order of 2x speed improvement not 10x. I would imagine branch prediction gives a much bigger benefit but nobody is going to make a performance sensitive processor without branch prediction (whereas in-order is still common).

[dougall]

Good point, it's likely that a high-power in-order chip could go faster. Do you know of any examples of high-power in-order cores I could compare to?