Can Intel finally beat ARM on performance per Watt?

(hackaday.com)

64 points | by gumby 3 hours ago

4 comments

  • anticorporate 1 hour ago
    Rather than the Hackaday article, which doesn't add anything to the original, here's Jeff's actual video:

    https://www.youtube.com/watch?v=A2B7oI0FYqo

    and post:

    https://www.jeffgeerling.com/blog/2026/excited-for-intel-eff...

  • bhouston 1 hour ago
    The improved efficiency is great!

    The Apple Neo was still 2x faster for graphics and around 1.4x faster for single core cpu. And remember the Apple Neo is running an iPhone CPU that is much slower than the M series.

    It is strange that this chip is so crazy efficient though. I would love to know the details of exactly why it is? It seems like some new tech or process?

    I do want 1.5x battery life for free out of my next laptop. Who wouldn’t?

    • MBCook 55 minutes ago
      Apple has been working ruthlessly on battery efficiency for a long time because of the phones and their tendency to minimize battery sizes on Macs for thinness.

      The exact design of the cores, how they’re scheduled, the way background stuff is handled on MacOS. All of it. The chips are made on a fantastic process too, but that alone isn’t it. For example they’ve been putting the ability to drop refresh rate really low when nothing changes to more and more of their machines.

      It could be that the Intel chip is close, IDK.

      But add in other motherboard components, the screen, the OS, the software and system libraries, all are optimized together to hit those numbers. And any of those alone or in combination could be part of the differences.

      • oofbey 49 minutes ago
        I think the Top500 benchmark is biased here. It’s a supercomputing benchmark which means it’s going to heavily weight SIMD and float64 performance, which are things that rarely matter for everyday computing. SIMD has uses in the real world - image or video editing, data crunching, graphics. But consumers basically never use fp64 any more, and so many modern chips have next to zero performance on them. That could easily skew the numbers in intel’s favor.
    • re-thc 52 minutes ago
      > And remember the Apple Neo is running an iPhone CPU that is much slower than the M series.

      We really need to get over generalization like "phone CPU". Times have changed. Phone or not really isn't the focus.

      Per core the A series (cough phone) isn't that much slower than equivalent M series. It's literally the same family just with some extra features, more power, etc.

      • MBCook 48 minutes ago
        I suspect that the comment is more about this not being Apple’s best standard consumer CPU for computers, which would be the M5 (though to your point that’s also in iPads).

        It’s good Intel can match anything while staying cool and efficient. That’s a great step. But I’d like to see them match the M5.

  • dyauspitr 28 minutes ago
    Well, they beat even TSMC on performance so they’re at least halfway there.
  • varispeed 1 hour ago
    Why people are excited about Intel barely matching already outdated CPUs of the competition?

    Shouldn't we be concerned that the company instead of aiming for the leap is producing legacy hardware destined for landfill?

    Wake me up when Intel produces something groundbreaking.

    • margalabargala 1 hour ago
      Comments like this one remind me of all the people saying "China can't invent things, they can only copy the US" 20 years ago.

      Like, we're comparing a new Dell to a Mac released only 4 months ago. How did you feel about the Mac Neo then, and now? Is it also legacy hardware destined for the landfill?

      • geerlingguy 1 hour ago
        Not only that, the efficiency (FP64, HPL) is also beating all the M4/M3/M2/M1 systems I've tested besides the M4 Mac mini: https://github.com/geerlingguy/top500-benchmark#results

        I think the bigger news is Intel's made a chip that isn't just pushing clocks to hit some performance number, they've actually tuned clocks for efficiency... which also leads to much better battery life.

        And the fan on the system in the original article[1] also allows the Intel system to run substantially faster for longer tasks (where the Neo thermally saturates and has to stay throttled).

        (The iGPU is another matter... sadly still a bit lacking.)

        I'm hoping Intel makes a follow-up to the N100-series chips with just four of their newer low power E-cores.

        [1] https://www.jeffgeerling.com/blog/2026/excited-for-intel-eff...

        • GeekyBear 45 minutes ago
          Efficiency is one thing.

          Efficiency and performance is another.

          We've long known that pushing clock speeds results in diminishing efficiency, so it's about time we see Intel stop pushing the clocks (and power) so hard that the chip melts down and the battery drains quickly.

        • lowbloodsugar 41 minutes ago
          Ok so Intel managed to make a 20W TDP chip that gets 6.x Gflops/W. Call me back when they’ve got a chip that still gets 6.x Gf/W with a 200W 1,200Gflop package like the M3 next on your list. This little fellow is only 50% more efficient than my aging M1 Max!

          It’s great that they are making progress. Competition is good. They certainly need good news right now. I have exactly one intel cpu in my house in a NUC I got off eBay and it’s about to be replaced by my M4 mini. My other x86 are Zen (threadripper, 5800x3d, 5950s).

          • geerlingguy 4 minutes ago
            Yeah, the first step is they realize pushing clocks is not the most important thing; second step is to apply that to other chips they make too! I want to see more desktop and server chips getting closer to Arm efficiency.
      • dochtman 1 hour ago
        I don’t think it’s completely unfair to say that the Neo is based on a chip that was first announced in Sep 2024 while the Intel chip is from Apr 2026.

        Also, I think the battery life most people are practically interested in is more like running (close to) idle and less like the number of Watts spent when running maxed out, and I wouldn’t be surprised if Arm chips still win on that metric…

        • MBCook 52 minutes ago
          Plus it’s a phone chip. Yeah it’s used in the Neo but it’s no M5.

          It’s good Intel got to this point, but you can’t declare them tied with Apple. They qualified for the real race, which us great, but they're not going to win with that chip.

      • re-thc 51 minutes ago
        > Comments like this one remind me of all the people saying "China can't invent things, they can only copy the US" 20 years ago.

        We still get these comments. Now about AI. China can only distill and are still years behind. Well well...

        • oofbey 34 minutes ago
          Really curious to see how ByteDance’s 10T model works out.