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    Home Unlabelled Hardware support: Re: anandtech's 11700k review was running with asynchronous IMC (i.e. 1:2 mode) + implications of artificial segmentation from Intel.

    Hardware support: Re: anandtech's 11700k review was running with asynchronous IMC (i.e. 1:2 mode) + implications of artificial segmentation from Intel.

    March 10, 2021

    Hardware support: Re: anandtech's 11700k review was running with asynchronous IMC (i.e. 1:2 mode) + implications of artificial segmentation from Intel.

    Re: anandtech's 11700k review was running with asynchronous IMC (i.e. 1:2 mode) + implications of artificial segmentation from Intel.

    Posted: 09 Mar 2021 11:54 PM PST

    I made this thread for the purpose of discussion and speculation, this isn't necessarily definitive news. Again, take this with a grain of salt for all you want.

    leak/source: intel presentation slide - https://twitter.com/9550pro/status/1369442891198763011
    https://videocardz.com/newz/intel-11th-gen-core-rocket-lake-full-specifications-allegedly-leaked

    Slide Footnote 3: 11900K(F) is 3200 "Gear 1". All other skus are 3200 "Gear 2". 2933 is Gear 1 for all skus.

    What is gear 1 / gear 2? Here is an MSI Z590 bios setting which specifies gear 1 or gear 2 is whether the IMC runs 1:1 or 1:2 (similar to amd's fclk setting) - https://i.imgur.com/pdfa5qg.jpeg . (Disappointing considering Skylake's IMC was much more capable, faster and with less latency, but that is not the topic of this post).

    According to the slide footnote only the 11900k/kf runs ddr4-3200 in 1:1 mode and the rest of the SKUs will run at 3200 1:2 mode which has a significant latency penalty which may suggest artificial segmentation. Yes, that's right, Intel's entire Rocket Lake platform is DDR4-3200 1:2 mode except for the very top SKU. Anandtech's 11700k would have at default run at 1:2 asynchonous IMC mode since they tested at the official Intel spec of DDR4-3200 which would have negatively affected their latency-sensitive benchmarks such as gaming. Anandtech of course thought the Rocket Lake spec was 3200 so they tested stock which it is, but misleading. The actual stock setting is 3200 1:2. Oddly enough Intel also says it supports 2933 1:1 instead of 3200 1:2 which would have been much faster.

    This explains poor gaming performance from anandtech's review. The 'default' DDR4-3200 is 1:2 out of the box. Which is extremely odd considering you can set it to 1:1 in the bios setting I showed. Anandtech could have run it 1:1 to get better results but this is non-stock i.e. overclock.

    The i9 and the i7 are the exact same die. I see no reason why the i9 is 3200 1:1 and the i7 is 3200 1:2.

    Speculation/possiblities:

    1. If the IMC is identical in capability, then this is deliberate artificial segmentation from intel. Reasons for segmentation are there as the 11700k and the 11900k have the exact same amount of cores. Skylake frequency scaling is over and for once the SKUs might be closer similar to 5600X vs 5950X for example, except here the i7 and i9 have the exact same amount of cores.

    2. If the "gear" setting is manually overridable from BIOS and works identically across SKUs , then this is not that bad but hurts the average consumer who runs stock and buys OEMs which will run 3200 1:2 and will also void their warranty if they want to sync the imc 1:1 in ddr4-3200 (if it's even possible). And can you just imagine how fucked up it would be with an OEM dell / hewlett-packard pc running at 3200 1:2 but you cant change to 2933 1:1 because the bios setting doesnt exist (spec sheet says BOTH 3200 1:2 and 2933 1:1 are 'default' settings but in that case there is no setting to choose!).

    3. If the IMC for lower skus by default (non-oc) supports 2933 1:1 and 3200 1:2, why the latter at all? 2933 1:1 is much faster than 3200 1:2 and so then in that case this is another typical intel marketing game of hurting both the product and the consumer for fancy slideshows - 'bigger number better'. So the CPU will run at a worse setting but bigger number at stock. This is exactly shown in Anandtech's review. Their benchmarks would have been much better at 2933 1:1 instead of 3200 1:2 which are both supported by default/stock. Without that extra detail Anandtech were mislead by Intel, and so could the regular consumer. The sum of points 2 and 3 would be that this is entirely just a marketing ploy to make i9 look better than the identical i7 while simultaneously claiming entire platform is 3200.

    4. It is potentially misleading advertisement from Intel to claim DDR4-3200 as a platform feature for Rocket Lake when apparently some DDR4-3200s are more equal than others.

    Final note my title says anandtech were running 1:2 however they are not to blame at all for poor performance it is Intel spec. They did everything correctly as they are testing stock / default settings outside of the box. So it is not misrepresentative as some people were claiming with other reasons like bios version. Perhaps they know it was also 3200 1:2 but they can't comment (NDA). Perhaps they also know 2933 1:1 is also supported and would have been much faster but they couldn't have been able to do so without revealing NDA information (i.e. people would ask why they used 2933 instead of 3200).

    submitted by /u/zqv7
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    Graphics Card Market Share Q4/2020: AMD 17% vs nVidia 83%

    Posted: 09 Mar 2021 01:05 PM PST

    • overall GPU market was up +20.5% vs last quarter, but AIB market was down –3.9%
    • so, overall GPU market was once again dominated by iGPUs = mean nothing for real GPUs
    • at AIB market, AMD reached an (all-time?) low of 17% market share
    • looks like nVidia's AIB volume was "normal", but AMD's was very too less
    • info diagram: Add-in Board GPU Market Share 2002 - Q4/2020
    • "AIB GPUs" = Add-in Board = desktop graphics cards
    • "dGPU" = discrete GPUs = include discrete (not integrated) mobile and desktop solutions
    • "all PC GPUs" = include all integrated solutions (iGPUs inside AMD's and Intel's PC processors)

     

    AIB GPUs Q4/2019 Q1/2020 Q2/2020 Q3/2020 Q4/2020
    AMD 31.1% 30.8% 22% 23% 17%
    nVidia 68.9% 69.2% 78% 77% 83%

     

    dGPUs Q4/2019 Q1/2020 Q2/2020 Q3/2020 Q4/2020
    AMD 27% 25% 20% 20% 18%
    nVidia 73% 75% 80% 80% 82%

     

    all PC GPUs Q4/2019 Q1/2020 Q2/2020 Q3/2020 Q4/2020
    AMD 19% 17% 18% 19% 17%
    Intel 63% 67% 64% 62% 69%
    nVidia 18% 16% 19% 19% 15%

     

    AIB market: update with shipped pieces instead of market share

    • nVidia gain some delivery quantity in Q3 and Q4
    • AMD lose delivery quantity in Q4, nearly –30% less than Q3
    • as every graphics card will be sold now, there is no sales or product problem for AMD, but a huge manufacturing problem
    AIB GPUs Q4/2019 Q1/2020 Q2/2020 Q3/2020 Q4/2020
    overall 11.5-11.8M pcs 9.3-9.5M pcs 9.9-10.1M pcs 11.2-11.5M pcs 10.8-11.0M pcs
    AMD ~3.6M pcs ~2.9M pcs ~2.2M pcs ~2.6M pcs ~1.9M pcs
    nVidia ~8.0M pcs ~6.5M pcs ~7.8M pcs ~8.7M pcs ~9.0M pcs

     

    Sources: Jon Peddie Research #1, Jon Peddie Research #2, 3DCenter.org

    submitted by /u/Voodoo2-SLi
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    EU aims to be independent chip power with 20% global share

    Posted: 09 Mar 2021 12:42 PM PST

    The Samsung SSD 980 (500GB & 1TB) Review: Samsung's Entry NVMe

    Posted: 09 Mar 2021 07:06 AM PST

    Intel CPU interconnects can be exploited by malware to leak encryption keys and other info, academic study finds

    Posted: 09 Mar 2021 09:09 AM PST

    [TechTechPotato] Ian Interviews #3: Dr. Richard Uhlig, Director of Intel Labs

    Posted: 09 Mar 2021 09:00 PM PST

    Any firmware devs worked with RSL10 Bluetooth SoC by ON Semiconductors? or have general thoughts/experiences about ON Semiconductors MCUs?

    Posted: 09 Mar 2021 09:21 PM PST

    Hey all, I've done tons of dev work on Nordic Semiconductors nRF series chips, and of course tons of Arduino/AT series mcu's. I'm working on a a new project and need something absolutely tiny and incredibly low power. This is what I found: https://www.onsemi.com/products/connectivity/wireless-rf-transceivers/rsl10

    2.3 mm x 2.3 mm, claims 40nA sleep current while running on embedded low freq xtal, good specs for ram/flash (better than nRF52810-CAAA). The hardware features are perfect.

    I want to know if anyone has experience with programming ON Semi microcontrollers. Nordic has incredible top of class documentation, resources, in-house engineering support, great active forums, etc. ON semi has nothing comparable to this I imagine. I have worked with nRF chips specifically due to ease of software development and abundance of support in case of issues, compared to TI chips which I've heard are notoriously frustrating for firmware devs (me).

    Any thoughts or insights here would be appreciated! Thanks

    submitted by /u/exitfailure
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    BusinessKorea | Sony purchased 35 patents from Intel in November, December last year with regard to the Gate-all-around (GAA) transistor technology – likely aiming for more advanced imaging sensors

    Posted: 09 Mar 2021 11:33 AM PST

    "CES 2021: Biggest generational leap, laptop RTX 3060 30% more powerful than PS5" But what is the reality?

    Posted: 09 Mar 2021 06:38 AM PST

    At this years CES, Nvidia had a presentation "showcasing" new RTX 3000 series laptop GPUs, promising that even the cheapest 3060 will perform 30% better than PS5 and that this isthe biggest generational leap in terms of performance.

    Now that we actually have those laptops out, how is the performance compared to PS5? Is this really the biggest generation leap in notebook graphics? What do you think, are there any data to support these cases?

    Regarding the "biggest generational leap" i straight up dont think it is the case - i dont have any data but i feel like jump from 900 series to a 1000 series was much higher.

    What do you think about this? I think Nvidia overshot on this one quite a bit.

    submitted by /u/Demistr
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    [Hardwareluxx] - Processor non grata: Rocket Lake-S as Core i7-11700K in the preliminary test

    Posted: 10 Mar 2021 12:58 AM PST

    Why do AMD and Nvidia launch the top of the stack GPUs first?

    Posted: 09 Mar 2021 05:25 PM PST

    It seems like Nvidia launching the top-of-the-line GPUs with less Vram is really biting them in the rear this product cycle. Why do AMD and Nvidia launch the top of the stack GPUs first; wouldn't it be more flexible to launch bottom up?

    submitted by /u/Stanley_C
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    [VideoCardz] Another (pre)review of Intel Core i7-11700K "Rocket Lake-S" posted ahead of launch

    Posted: 10 Mar 2021 01:29 AM PST

    Ryzen 5000 vs Intel Comet Lake, RTX 3070 Gaming Laptop Battle

    Posted: 10 Mar 2021 02:01 AM PST

    (igor's LAB) Radeon RX 5700XT, Radeon VII and RX Vega do not offer direct support for Resizeable-BAR, but it could be done

    Posted: 09 Mar 2021 08:39 AM PST

    XDA Developers: "Qualcomm's next-gen Snapdragon 8cx chip could rival Apple’s M1 Silicon"

    Posted: 09 Mar 2021 08:11 AM PST

    [VideoCardz] Intel 11th Gen Core "Rocket Lake" full specifications allegedly leaked

    Posted: 10 Mar 2021 01:00 AM PST
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