28+ W

By: Adrian (a.delete@this.acm.org), April 20, 2020 3:54 am
Room: Moderated Discussions
David Kanter (dkanter.delete@this.realworldtech.com) on April 19, 2020 7:27 pm wrote:
> Dummond D. Slow (mental.delete@this.protozoa.us) on April 18, 2020 9:27 am wrote:
> > another anon (not.delete@this.person.com) on April 17, 2020 11:13 pm wrote:
> > >
> > > Well, AMD's Renoir 4C/4T Ryzen 3 4300U has a base frequency of 2700Mhz at 15W. If they felt like
> > > playing in the 28W space directly, one would think they might be able to have a fairly compelling
> > > product with either way higher base clocks or many more cores/threads at a similar power level.
> > > So calling Coffee Lake best in class might not be the best description any more.
> > >
> >
> > AMD has 8 cores 16 threads at 3.0 Ghz base and 4.3 GHz (or perhaps 4.4
> > not advertised, it's not clear) maximum boost in 35W (Ryzen 9 4900HS).
> >
> > It's the same design as their 15W chips just with scaled up power draw limits, so yeah.
> I have no interest in 8C chips for client systems. 4C/8T is pretty much optimal.
> This gets at the fundamental problem for AMD. More cores is
> valuable for some servers, and almost no client systems.
> As an educated consumer, I want a small number of fast cores.
> David

While you are correct that for what you do you want fast cores, from this you cannot conclude that you want 4C/8T.

Since 2017 (Coffee Lake), the fastest cores are provided by processors with more cores than that.

Currently, if you want the fastest cores (in portable computers), both for Intel and for AMD, you must buy 8C/16T processors.

Even when the Tiger Lake U will be introduced, hopefully in this autumn, it is unlikely that it will be faster than a 5.3 GHz Comet Lake H.

The latest rumors about the Intel roadmap were that Rocket Lake will be restricted to desktops and that there will be an 8C/16T Tiger Lake H for laptops in 2021, which will very likely have faster cores than Tiger Lake U.

Therefore, since last year and probably through 2021, the optimal choice for having fast cores will remain 8C/16T.

Of course, if you set additional constraints, e.g. a computer weight low enough to exclude H processors, in that case Tiger Lake U might be the optimal choice by the end of the year, but wanting fast cores is not enough to determine such a choice.

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TopicPosted ByDate
Tiger lake leak, Intel 10nm fixed?Tiger Lake Leaks2020/04/14 09:30 AM
  Tiger lake leak, Intel 10nm fixed?anon2020/04/14 08:08 PM
    Tiger lake leak, Intel 10nm fixed?Wes Felter2020/04/15 02:46 PM
      Keep in mind Intel supposedly fixed their 10nm process at the same time TSMC is ramping up 5nm (NT)anon2020/04/23 10:14 PM
  28+ Wme2020/04/15 07:42 PM
    28+ WDavid Kanter2020/04/17 09:12 AM
      28+ Wanother anon2020/04/17 11:13 PM
        28+ WDummond D. Slow2020/04/18 09:27 AM
          28+ WDavid Kanter2020/04/19 07:27 PM
            28+ WAnon2020/04/19 08:47 PM
              28+ WDavid Kanter2020/04/19 09:50 PM
                28+ Wanny2020/04/20 05:56 AM
                28+ WAnon2020/04/20 08:03 AM
                28+ Wwumpus2020/04/20 02:39 PM
                  EPYC F lineAnon2020/04/20 05:35 PM
              28+ Wgallier22020/04/19 11:44 PM
              28+ WAlberto2020/04/20 09:07 AM
                28+ WAdrian2020/04/20 09:55 AM
                28+ WAnon2020/04/20 02:18 PM
                  28+ WAnon32020/04/20 04:02 PM
                  28+ WDummond D. Slow2020/04/20 09:05 PM
            28+ WAdrian2020/04/20 03:54 AM
            This was a comparison to put the "high clock" in contextDummond D. Slow2020/04/20 08:55 AM
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