Re: News : ARM Trying to Buy AmperComputing

On Fri, 17 Jan 2025, 186282@ud0s4.net wrote:

On 1/16/25 11:12 AM, D wrote:

  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.

 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.
 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.
 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.

>
 Having a choice, I bought an HP laptop with a lower-end i3
 rather than going for 'power'. It DOES last a lot longer on
 batteries and doesn't run nearly as hot. Good enough for
 anything I'm doing right now.
>
 In any case, laptops, seems MOST of the power goes to
 the DISPLAY. Be it LEDs or LED-backlit LCDs, the juice
 required is about the same. E-paper is too slow.
>

This is the truth! Wifi I shut off also, if I'm travelling. That also gives an extra boost to battery life.