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New superconductor microprocessor yields a substantial boost in efficiency

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Re: New superconductor microprocessor yields a substantial boost in efficiency

#231

Earlier quoted context omitted.

It's not about clock speed per se. It's about the lowest possible energy expenditure to erase one bit of information (or irreversibly destroy it by performing a logical operation). The principle comes about from reasoning about entropy loss in said situations. There's a hypothesized fundamental connection between information and entropy manifest in physical law. The idea is that if you destroy one possible state of a…

> The fact that it's only 38x the minimum is MIND BLOWING. It doesn't run at room temp. The difference is much larger than 38x. It's closer to 1000x.

The landauer limit is temperature-dependent. The difference was calculated for the system's operating temperature.

Re: New superconductor microprocessor yields a substantial boost in efficiency

#232

Earlier quoted context omitted.

> The fact that it's only 38x the minimum is MIND BLOWING. It doesn't run at room temp. The difference is much larger than 38x. It's closer to 1000x.

The landauer limit is temperature-dependent. The difference was calculated for the system's operating temperature.

> The landauer limit is temperature-dependent.

No it's not. It's linearly dependent on temperature. The figure commonly stated is arbitrarily chosen to be at room temperature.

Re: New superconductor microprocessor yields a substantial boost in efficiency

#233
post #229

Earlier quoted context omitted.

Not commenting on Moore's law, but I don't see how the last part is true when GPU have become a main component of personal computing. They are in fact becoming more and more important with the need for AI inference and always more demanding rendering tasks (both in resolution and frame rate).

The vast majority of software isn't written for the GPU. That's still true today, and it will likely be true in ten years as well. Unless we reach a point where that changes (and most software can fit its restricted paradigm), we should compare apples to apples. If we were talking solely about GPU performance, I would be more inclined to agree with claims about "80x more processing power than 10 years ago" etc, thoug…

Apple GUI frameworks enable them to rely heavily on the GPU, and the smooth and slick GUI are definitely a big part of their value proposition. While I agree that the business logic of most apps aren't using the GPU for compute, I think most app will have a rendering side where it is important.
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