[sweetjuly]

Sorry, I totally didn't mean this as a slight to your work--I've been a fan for quite a while :)

More so that estimating power when you don't have access to post synthesis simulations or internal gas gauges is very hard. For something so small, I can easily see this being a massive pain to measure in the field and the kind of thing that would easily vanish into the noise on a real system.

But in the absence of any clear answer, I do think it's reasonable to assume that the feature does in fact have the power advantages AMD intended, even if small.