2020 iPad Pro's A12Z shows little improvement over 2018's A12X in early benchmarks

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  • Reply 21 of 29
    melgrossmelgross Posts: 33,530member
    blastdoor said:
    melgross said:
    entropys said:
    Gaby said:
    @AppleInsider
    Guys you made a mistake: in fact the A12X has 7 GPU cores, whereas the A12Z has 8. 

    Not certain but I recollect it might be both have 8 cores, but the eighth in the A12X is not activated.
    this seems to be about tweaks to the SOC for the new camera.
    Not for recent iPad Pro purchasers, more for those with several year old versions ,looking for an upgrade.
    No, there is no eight core on the A12x. The chip photos dont show an eight core. Stop writing FUD.
    Where are there die shots of the A12X? I haven't been able to find any via Google. Anandtech's coverage when the A12X came out specifically notes lack of access to a die shot: 

    https://www.anandtech.com/show/13661/the-2018-apple-ipad-pro-11-inch-review/4
    "While we don’t have access to a die shot of the A12X..."
    Ok, Techinsights took an x-ray of the chip, but it doesnt show the layout, as they were looking for something else. There is a pic though. I did see it. I don't make these things up. If i can find that, I’ll post it. But people saying that Apple had 8 cores and disabled one is garbage. Where is there any responsible site saying that? It’s just FUD.

    https://sudonull.com/post/1191-Apples-very-strange-A12X-microprocessor-casing

    but Apple did make a point of talking about a new thermal design for better performance. They never made that point before other than when going to a smaller process, and not stating a new thermal design was done, just the advantage from the die shrink,. So something is going on here.  It might not affect the peak, but it could very well affect long term performance. All chips in the mobile world “throttle”, otherwise known, in the Desktop world, as turbo mode. Pretty much the same thing, except its considered to be an advantage. If Apple can pull 10-20% more performance, long term, out of this device, with this new chip, then it’s well worth it. Unfortunately, Geekbench doesn't test long term performance. It’s basically just testing peak, so we need a more thorough test, such as those Anandtech and even Arstechnica does. Maybe Mike will do that here as well. Once we see the results of those tests, we’ll know better. Right now, what we see is meaningless.
    edited March 2020 dewmewatto_cobra
  • Reply 22 of 29
    tewhatewha Posts: 13member
    wizard69 said:
    They have literally taken cue from the video card makers and given us a new model with nothing of real value added.  
    You don't have to upgrade from a 2018 iPad Pro. This gives those upgrading from previous models (or even purchasing their first iPad) a model that will probably have a longer useful life for them.

    Not everything is for you.
    edited March 2020 watto_cobra
  • Reply 23 of 29
    tewhatewha Posts: 13member
    melgross said:
    No, there is no eight core on the A12x. The chip photos dont show an eight core. Stop writing FUD.
    The A12X is an 8 core processor (4 Tempest, 4 Vortex) with 7 graphics cores.
    watto_cobra
  • Reply 24 of 29
    gatorguygatorguy Posts: 24,284member
    tewha said:
    melgross said:
    No, there is no eight core on the A12x. The chip photos dont show an eight core. Stop writing FUD.
    The A12X is an 8 core processor (4 Tempest, 4 Vortex) with 7 graphics cores.
    Wiki? I wasn't sure that was accurate and had tried to verify it myself. 
  • Reply 25 of 29
    melgrossmelgross Posts: 33,530member
    tewha said:
    melgross said:
    No, there is no eight core on the A12x. The chip photos dont show an eight core. Stop writing FUD.
    The A12X is an 8 core processor (4 Tempest, 4 Vortex) with 7 graphics cores.
    Have you been following this? We’re talking about the graphics core count. Nobody is questioning what we all know, which is that the A12x has 8 CPU cores.
    edited March 2020
  • Reply 26 of 29
    rwesrwes Posts: 200member
    melgross said:
    entropys said:
    Gaby said:
    @AppleInsider
    Guys you made a mistake: in fact the A12X has 7 GPU cores, whereas the A12Z has 8. 

    Not certain but I recollect it might be both have 8 cores, but the eighth in the A12X is not activated.
    this seems to be about tweaks to the SOC for the new camera.
    Not for recent iPad Pro purchasers, more for those with several year old versions ,looking for an upgrade.
    No, there is no eight core on the A12x. The chip photos dont show an eight core. Stop writing FUD.
    Not definitive: “not certain but I recollect...”.

    Definitive: “No, ... Stop writing FUD” to *potentially* be proven wrong... gotta slow down sometimes.

    https://iphone.appleinsider.com/articles/20/03/26/apples-a12z-bionic-chip-could-be-a-re-binned-a12x

    It’s not the first time Apple has done this, and it doesn’t mean there is any nefarious reason behind it (except for the tinfoil wearing hat crowd). It’s not like they don’t know people get die shots.

    IIRC, some 3rd Generation Apple TV’s used re-binned processes with a core (not graphics in that case) disabled.
    avon b7
  • Reply 27 of 29
    ne1ne1 Posts: 69member
    PShimi said:
    rain22 said:
    Well... isn't that just indicative of Apple innovation of late. 


    I think Apple wants to get LiDAR into people's (developer's) hands sooner rather than later, because:
    when they release the iPhone 14 later this year, it would help their marketing if there were apps that actually took advantage of it.

    They tweaked the SoC a bit, presumably to perform better with the LiDAR.

    The RAM speed is curious though. I'd read about it a couple of days back, and thought perhaps the SoC was clocked higher and the stepping resulted in the RAM being clocked slightly lower. But now we see the SoC is the same GHz, so who knows.

    There is another reason for this release - they wanted to sell more units - and if you tell people 'the iPad Pro is great, but hasn't been updated in a while' they hold out. Now we have lots of people stuck at home, that are being told 'there is a new model' - most people who were holding out will probably 'rush out' (online) and buy it.

    I am still waiting for the newer iPad Pro with an A14X in Oct this year. While we shall have to wait and see if that really happens, I feel like it will (it's a feeling, rather than because I read something somewhere). I was one of those burned by the iPad 3, not happening again.
    I have the same feeling. I also bought the iPad 3 and felt burned when they released a newer model later that year. Feels like they will do the same thing again, here, as there is not much new and exciting in this release. I'd also rather have the Mini-LED display as well. 
  • Reply 28 of 29
    tobiantobian Posts: 152member
    What was the configuration of 2018s iPad? Was it 1TB, or less? When it comes to memory performance, one can guess 4GB can be handled like one unit (4096).. but 6GB, probably, must be controlled as a pair of two units = slower. I believe the memory speed of both 2018 and 2020 models is the same.
  • Reply 29 of 29
    SGproSGpro Posts: 1member
    Gaby said:
    @AppleInsider
    Guys you made a mistake: in fact the A12X has 7 GPU cores, whereas the A12Z has 8. 

    Wrong, one core is disabled on the 2018 model, and enabled on the 2020 model
    edited August 2020
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