this post was submitted on 23 Oct 2023
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As far as I know not to the same degree? For example I'm pretty sure Apple's efficiency cores don't do speculative execution or at least don't do much of it.
AFAIK the x86 chips mostly just reduce the clock speed don't they?
x86-64 doesn’t need efficiency cores because unlike ARM, it doesn’t care about limiting power draw.
ARM’s main appeal has always been ability to compute with minimal current (I think the first ARM processor consumed no power).
Now that would be some efficiency aight.
I recall something about operating on leak current alone, which is probability where you got that from.
Don't try this at home. You could cause an infinitly powered electro-black-hole.
@Skelectus @ultratiem yes, that happened. It first worked on residual energy from the board it was on. It was a funny accident actually. They forgot to turn on the power supply, but it was working.
That can't be quite right either, as it would be eaten immediately.
I looked it up, most specific I could find is this quote:
Not sure how accurate this is, but the power has to originate from something that is actively powered.