skiwi

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skiwi
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  • What the Apple Silicon M1 means for the future of Apple's Macs

    "In theory, Apple could increase the clock speed of the M1 for higher computation performance with the same number of cores. In practice, power usage (and waste heat) grows in a nonlinear relationship to clock speed, so it’d be more like an Intel processor for power usage."

    Correct, but also important to remember that this is actually Apple's 8th generation of 64bit microarchitecture (since the Cyclone A7 core).  The microarchitecture of the M1 is very impressive, from what little information can be gleaned by specialist sites (note Apple don't disclose anything about it).  As an example, leveraging the fixed length instruction set of ARM, they run an 8-wide decode which is twice what anyone else is doing on Arm, AMD and Intel.  

    In "old money" that's like running a 4-barrel Holley into your small-block over and above the old 2-barrel Rochester.

    And, t
    he other interesting thing about this chip over the A14 (which also uses 5nm) is the almost 50% increase in transistors. That is like an upgrade from a v6 to a v8 in old money.
    ;-)



    williamlondontmay
  • What the Apple Silicon M1 means for the future of Apple's Macs


    entropys said:
    2morrow said:
    Could some explain why they were not able to update the higher end MacBook Pros with the M1?
    Because:
    • the M1 is currently Apple’slow end chip. That it is being compared with, and can compete with,  higher end alternative chips is just marketing gravy.
    That clearly sells the chip short.  The M1 is quite simply the highest performing laptop CPU in the world. By some way (looks like approx 50% over a 10-gen i9).

    That said, the following limitations means that this won't be powering the higher-end laptops without another SOC package
    1) Limitations in Thunderbolt channels
    2) SOC memory capacity limited to 16GB
    3) Monitor support limited to 1 addition.
    williamlondonbikerdudetenthousandthingswatto_cobratmay
  • What the Apple Silicon M1 means for the future of Apple's Macs

    I think this is notable for 2 things particularly:
    1) The use of a SOC design which shows that the time for the ISA is (finally and thankfully) over. SOC means better integration, power management, and not insignificantly, better security
    2) We are finally seeing an OS able to schedule across disparate CPU cores which the LITTLE.big architecture has enabled on smartphones for years.  This is a big advance in allowing an OS to more efficiently use machine resources.
    williamlondonbikerdudewatto_cobra
  • Apple's new 27-inch iMac sports 10th gen Intel chips, Nano Texture option

    As others have noted, there is an error in the article.  There has been no upgrade to the ports available on the iMac 27".  Rather than the 4 T3 ports the article states (which is what it iMac Pro has), the standard 27" iMac retains the 2x T3, 3x USB 3.2 ports of the old model - leaving the 4x T3 for the iMac Pro...

    Shame really as 4x T3 would be a very nice upgrade.
    watto_cobra
  • Apple's new 27-inch iMac sports 10th gen Intel chips, Nano Texture option

    elijahg said:
    Seems strange to add a T2 this late in the game, especially since on the desktops it doesn’t really do much. I doubt they’ve just recycled the iMac Pro logic board as the Xeons are a different beast and would require a lot of engineering to convert the socket to a Core CPU.

    I wonder if Apple will use the lack of a T2 chip in future Macs as a reason to drop support. 
    Actually the T2 does a lot.  Securing the boot process is a unique differentiator of the Mac across all its forms now. Just look at the firmware hacks for USB & Thunderbolt devices and you see why this is a great feature.  Also, I'd note that the ability to "key" an SSD to the device makes the encryption that much more secure.
    watto_cobra