Big gotchas: poor specs

By: anon (spam.delete.delete@this.this.spam.com), August 10, 2019 11:25 am
Room: Moderated Discussions
john (john.ral8.delete@this.gmail.com) on August 10, 2019 10:54 am wrote:
> Linus Torvalds (torvalds.delete@this.linux-foundation.org) on August 9, 2019 3:29 pm wrote:
>
> > But I'm on a i9-9900K right now, and honestly, Ryzen 3950X looks like a very tempting and obvious
> > next upgrade. I can still do a quiet machine with something in the 105W range.
> >
>
>
> There are still a few really big gotchas.
>
> AMD marketing on the specs is just misleading.
>
> Your 9900K can easily do 5 GHz on a few cores and 4.7 GHz on all cores. You can also
> most likely reliability overclock the whole chip to >= 5 GHz on all cores. Although
> the 3950X isn't out yet, the 3900X can't even get to the advertised 4.6 GHz no matter
> what setup/cooling. Most people have a hard time getting to 4.4 on a single core.
>

From what I've seen it's more about power consumption than cooling. The 4.6 is very optimistic and only happens with programs that cause only fairly low power consumption. Anything where the Zen2 cores actually get to play to their strengths and utilize more ressources gets throttled back. It's probably possible to mess around with settings to bypass that, at the cost of obviously higher power consumption.

> And in ~October Comet Lake will bring more cores and even higher
> frequency. I am sure those clocks will certainly be attainable.

No Comet Lake this year. 2020Q1 10 cores afaik.
Which clocks will be attainable?
If Linus is interested in the 3950X as an upgrade and not the 3900X (or even 3800X) I highly doubt it's for the single thread performance. I'm sure the 4% extra from pushing it to 5.2 will be terrific, but it's still not going to beat 12, let alone 16 cores.
< Previous Post in ThreadNext Post in Thread >
TopicPosted ByDate
EPYC SAP-SD 2-tier benchmark resultsMichael S2019/08/08 05:18 AM
  EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownMichael S2019/08/08 08:29 AM
    Wrong headline. Should be "SPECpower_ssj2008 - EPYC2 is in class of its own" (NT)Michael S2019/08/08 08:51 AM
    EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/08 03:42 PM
      EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownblue2019/08/08 07:35 PM
      EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownMaynard Handley2019/08/08 08:58 PM
        EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon2019/08/09 02:00 AM
          EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/09 03:09 AM
            EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownblue2019/08/09 08:47 AM
        EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/09 02:12 AM
          EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownMaynard Handley2019/08/09 09:25 AM
            EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownDoug S2019/08/09 09:33 AM
              EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon2019/08/09 10:24 AM
            EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownAlberto2019/08/10 04:04 AM
          EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon.12019/08/09 05:30 PM
        EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownme2019/08/09 09:58 PM
      EPYC SAP-SD 2-tier benchmark results - EPYC2 is in class of its ownanon2019/08/09 12:47 AM
  EPYC SAP-SD 2-tier benchmark resultsLinus Torvalds2019/08/09 03:29 PM
    EPYC SAP-SD 2-tier benchmark resultsanon2019/08/10 07:20 AM
      EPYC SAP-SD 2-tier benchmark resultsme2019/08/10 07:36 AM
        EPYC SAP-SD 2-tier benchmark resultsanon2019/08/10 08:20 AM
          EPYC SAP-SD 2-tier benchmark resultsanon.12019/08/10 09:40 AM
            EPYC SAP-SD 2-tier benchmark resultsanon2019/08/10 10:38 AM
          EPYC SAP-SD 2-tier benchmark resultsblue2019/08/10 09:47 AM
        EPYC SAP-SD 2-tier benchmark resultsAdrian2019/08/10 10:43 AM
          EPYC SAP-SD 2-tier benchmark resultsme2019/08/10 11:06 AM
            EPYC SAP-SD 2-tier benchmark resultsMichael S2019/08/10 11:28 AM
    Big gotchas: poor specsjohn2019/08/10 10:54 AM
      Big gotchas: poor specsme2019/08/10 11:04 AM
      Big gotchas: poor specsanon2019/08/10 11:25 AM
        Big gotchas: poor specsLinus Torvalds2019/08/10 12:13 PM
          Big gotchas: poor specsanon2019/08/10 01:58 PM
          Big gotchas: poor caches2019/08/12 01:51 AM
            Big gotchas: poor caches2019/08/12 01:59 AM
            Big gotchas: poor cachesTravis Downs2019/08/12 09:15 AM
              parallelism vs. efficiencyhobold2019/08/13 04:43 AM
            Big gotchas: poor cachesAndy N2019/08/12 06:45 PM
              Big gotchas: poor cachesanon2019/08/13 12:43 AM
          Big gotchas: poor specsJouni Osmala2019/08/12 10:18 PM
            Big gotchas: poor specsAdrian2019/08/12 11:58 PM
              Kernel compile 25-30s, noise 25-27dBJouni Osmala2019/08/13 04:00 AM
                Quiet and fast workstationsGian-Carlo Pascutto2019/08/13 06:00 AM
                  Quiet and fast workstationsAdrian2019/08/13 07:01 AM
                  Quiet and fast workstationsDavid Hess2019/08/13 01:51 PM
                    Quiet and fast workstationsGian-Carlo Pascutto2019/08/14 12:43 AM
                      Quiet and fast workstationsMichael S2019/08/14 02:09 AM
                        Quiet and fast workstationsGian-Carlo Pascutto2019/08/14 02:59 AM
                          Quiet and fast workstationsDavid Hess2019/08/14 06:05 PM
                        Quiet and fast workstationsDavid Hess2019/08/14 05:56 PM
                      Quiet and fast workstationsDavid Hess2019/08/14 06:30 PM
                  Passively cooled threadripper/xeon WJouni Osmala2019/08/15 03:12 AM
                    Passively cooled threadripper/xeon WAdrian2019/08/15 03:47 AM
                      Passively cooled threadripper/xeon WJouni Osmala2019/08/15 05:58 AM
                        Passively cooled threadripper/xeon WAdrian2019/08/16 12:12 AM
                          Passively cooled threadripper/xeon WAdrian2019/08/16 12:21 AM
                          Passively cooled threadripper/xeon WJouni osmala2019/08/16 09:46 AM
                            Passively cooled threadripper/xeon WGroo2019/08/16 12:07 PM
                Kernel compile 25-30s, noise 25-27dBAdrian2019/08/13 06:39 AM
                Kernel compile 25-30s, noise 25-27dBLinus Torvalds2019/08/13 12:12 PM
                  which graphics card?anonymous22019/08/13 12:52 PM
                    which graphics card?Linus Torvalds2019/08/13 01:12 PM
                  Kernel compile 25-30s, noise 25-27dBDoug S2019/08/13 03:22 PM
                    Kernel compile 25-30s, noise 25-27dBDavid Hess2019/08/14 06:38 PM
                  Kernel compile 25-30s, noise 25-27dBJouni Osmala2019/08/14 12:09 AM
                    AIOsGroo2019/08/14 07:19 AM
                      AIOsGian-Carlo Pascutto2019/08/14 08:52 AM
                        AIOsGroo2019/08/14 09:49 AM
                      AIOsBrett2019/08/14 02:02 PM
                    Kernel compile 25-30s, noise 25-27dBLinus Torvalds2019/08/14 11:10 AM
                  Kernel compile 25-30s, noise 25-27dBGian-Carlo Pascutto2019/08/14 01:33 AM
                    Kernel compile 25-30s, noise 25-27dBAdrian2019/08/14 05:06 AM
                      Kernel compile 25-30s, noise 25-27dBGian-Carlo Pascutto2019/08/14 09:01 AM
                      AMD Bios, etc..Anon2019/08/14 11:39 PM
                        AMD Bios, etc..hobold2019/08/15 07:10 AM
                          AMD Bios, etc..Anon2019/08/15 04:20 PM
                        AMD Bios, etc..Jan Olšan2019/08/15 08:49 AM
                          AMD Bios, etc..Adrian2019/08/15 09:16 AM
                          AMD Bios, etc..Gro2019/08/15 10:57 AM
                        AMD Bios, etc..David Hess2019/08/16 05:39 AM
      Big gotchas: poor specsAdrian2019/08/10 01:28 PM
      Big gotchas: poor specsDummond D. Slow2019/08/10 01:57 PM
        Big gotchas: poor specsanon22019/08/11 12:33 AM
          Big gotchas: poor specsblue2019/08/11 12:57 AM
          Big gotchas: poor specsAdrian2019/08/11 05:41 AM
            Big gotchas: poor specsaaron spink2019/08/12 09:45 AM
              Big gotchas: poor specsFoo_2019/08/12 11:02 AM
              Big gotchas: poor specsTravis Downs2019/08/12 11:26 AM
                Big gotchas: poor specsGabriele Svelto2019/08/13 09:48 AM
                Big gotchas: poor specsaaron spink2019/08/13 07:23 PM
                  Big gotchas: poor specsDoug S2019/08/13 11:15 PM
                    Big gotchas: poor specsGian-Carlo Pascutto2019/08/14 01:35 AM
                    Big gotchas: poor specsaaron spink2019/08/15 05:16 PM
                      Big gotchas: poor specsJouni Osmala2019/08/15 09:03 PM
                        Big gotchas: poor specsaaron spink2019/08/19 04:05 AM
                          Big gotchas: poor specsMichael S2019/08/19 04:37 AM
                            Big gotchas: poor specsRicardo B2019/08/19 05:40 PM
                              Big gotchas: poor specsAaron Spink2019/08/25 02:29 AM
              Big gotchas: poor specsAdrian2019/08/12 11:31 AM
              Big gotchas: poor specsJukka Larja2019/08/13 07:37 AM
              Big gotchas: poor specsLinus Torvalds2019/08/13 11:31 AM
          Big gotchas: poor specsDummond D. Slow2019/08/11 06:23 AM
      FX-9590 > i7-9700KGian-Carlo Pascutto2019/08/12 10:37 AM
    RDRAND issueanonymou52019/08/10 02:52 PM
      RDRAND issueLinus Torvalds2019/08/10 04:15 PM
        RDRAND issueGionatan Danti2019/08/11 01:35 AM
          RDRAND issueLinus Torvalds2019/08/11 10:43 AM
            RDRAND issueLinus Torvalds2019/08/11 11:05 AM
              RDRAND issue@never_released2019/08/11 11:10 AM
                RDRAND issueLinus Torvalds2019/08/11 01:13 PM
                  Err....Groo2019/08/11 06:47 PM
                    Err.... This is a zero content fud posteye roll2019/08/11 08:48 PM
                    Err....Brendan2019/08/11 08:50 PM
                    Err....Jukka Larja2019/08/12 07:38 AM
                  RDRAND issueJose2019/08/12 02:33 AM
              RDRAND issueGionatan Danti2019/08/11 02:12 PM
            RDRAND issueaaron spink2019/08/12 09:18 AM
      RDRAND issuename2019/08/11 09:35 AM
Reply to this Topic
Name:
Email:
Topic:
Body: No Text
How do you spell avocado?