Re: News : ARM Trying to Buy AmperComputing

On Thu, 16 Jan 2025, The Natural Philosopher wrote:

On 16/01/2025 10:58, D wrote:

This is the truth! I've seen it in a few laptops. But I don't know if they are energy efficient enough to make a huge difference. I get about 14 hours or so from my 1.5 year old laptop. If arm would bump that to 25 I'd seriously consider one! But last time I had a look, 1.5 years ago, the battery time on arm laptops was far from impressive.

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There is some limit in terms of how much charge needs to get moved around how many transistors of at least a given size that relates ultimate MIPS per watt to a figure independent of architecture.
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The original ARM used very few transistors and an extremely well optimised instruction set to get the performance that it did at such low power.
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Arguably it is now in the same ballpark as a late model INTEL *86 or even RISC chip.

This would correspond well with what I see in the market. It's a shame. I'd like to see a cpu focused on low power consumption since laptops don't need all the power they have today for regular day to day use. I'd much rather have a slow laptop that lasts me 30-40 hours, than a monster that runs out of power after 8 hours.