Superiority

By: Andrei F (andrei.delete@this.anandtech.com), September 18, 2020 2:39 am
Room: Moderated Discussions
Michael S (already5chosen.delete@this.yahoo.com) on September 18, 2020 2:58 am wrote:
> anon (anon.delete@this.anon.com) on September 17, 2020 7:10 pm wrote:
> > AnandTech's (SPEC ST performance) review is here: anandtech.com/show/16084/intel-tiger-lake-review-deep-dive-core-11th-gen/8
> >
> > All of TigerLake's extra performance over IceLake is due to higher clocks. And it significantly
> > outperforms the Zen 2 based AMD Renoir chip (Ryzen 7 4800U). However not all is good: TigerLake
> > experiences a noticeable IPC regression compared to IceLake. The memory subsystem is unable
> > to keep up with the higher clocks, and the reworked cache is not enough.
> >
> > And it just barely beats Apple's A13 despite using significantly more power.
> > Makes you think the A14 based Mac coming later this year will blow past Intel's
> > best CPU microarchitecture in single threaded integer performance.
> >
> > https://images.anandtech.com/graphs/graph16084/111168.png
>
> The picture reminds me of 1951's Arthur C. Clarke classic short story "Superiority".
>
The ultimate cause of our failure was a simple one: despite all statements to the contrary, it was not
> due to lack of bravery on the part of our men, or to any fault of the Fleet's. We were defeated by one
> thing only - by the inferior science of our enemies. I repeat - by the inferior science of our
> enemies.

>
> I mean, minimally tweaked 5 y.o. uArch manufactured on maximally
> tweaked 6 y.o. process reigns on top of the chart.

The difference that you can't see in that chart between the top 3 positions is that it's 40W vs 21W vs 4W. The apparent superiority will come crumbling down soon enough.
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      Tiger Lake performance profileMichael S2020/09/20 09:02 AM
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          Tiger Lake performance profileMichael S2020/09/21 12:38 AM
            Tiger Lake performance profileAndrei F2020/09/21 05:50 AM
              MKPI ? MPKI ? HPKI ? (NT)Michael S2020/09/21 06:03 AM
                MKPI ? MPKI ? HPKI ?Anon2020/09/21 06:22 AM
                  thank you (NT)Michael S2020/09/21 06:42 AM
                  MKPI ? MPKI ? HPKI ?none2020/09/22 12:12 AM
              SPEC Memory traffic & bandwidthAndrei F2020/09/21 07:35 AM
                SPEC Memory traffic & bandwidthAndrei F2020/09/21 07:36 AM
                  SPEC Memory traffic & bandwidthDavid Kanter2020/09/21 01:31 PM
                What is the meaning of multiple rows in few subtests? (NT)Michael S2020/09/21 07:45 AM
                  What is the meaning of multiple rows in few subtests?Andrei F2020/09/21 07:57 AM
            Poor L1D load bandwidthEric Bron2020/09/21 05:56 AM
              erratumEric Bron2020/09/21 05:59 AM
              Sorry I missread the graphEric Bron2020/09/21 06:14 AM
              Poor main memory load bandwidthMichael S2020/09/21 06:19 AM
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              Tiger Lake performance profileAndrei F2020/09/22 06:03 AM
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      SuperiorityMichael S2020/09/18 06:51 AM
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          SuperioritythePirate2020/09/19 01:28 AM
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