[clamchowder]

Note - I saw the article through from start to finish. For power measurements I modified my memory bandwidth test to read AMD's core energy status MSR, and modified the instruction bandwidth testing part to create a loop within the test array. (https://github.com/clamchowder/Microbenchmarks/commit/6942ab...)

Remember most of the technical analysis on Chips and Cheese is a one person effort, and I simply don't have infinite free time or equipment to dig deeper into power. That's why I wrote "Perhaps some more mainstream tech outlets will figure out AMD disabled the loop buffer at some point, and do testing that I personally lack the time and resources to carry out."

[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.

[tacticus]

and given the size of the variance it's probably too small to easily pick up from external atx\eps12v monitoring solutions :\