Zen 3 - CAD benchmark

By: Adrian (a.delete@this.acm.org), October 9, 2020 8:27 am
Room: Moderated Discussions
Per Hesselgren (perhesselgren.delete@this.yahoo.se) on October 9, 2020 7:29 am wrote:
> Adrian (a.delete@this.acm.org) on October 8, 2020 11:53 am wrote:
> > ⚛ (0xe2.0x9a.0x9b.delete@this.gmail.com) on October 8, 2020 11:22 am wrote:
> > > CPU) then it is likely there exists at least one architectural
> > > feature within the new CPU that has alone/by-itself
> > > 50-100% higher performance in synthetic benchmarks designed
> > > to stress that particular CPU feature. The question
> > > is: What Zen 3 features with 50-100% improvement are there? The only such Zen 3 feature disclosed so far is
> > > that L3 cache directly accessible by a CPU core has increased from 16 MiB to 32 MiB.
> > >
> > > -atom
> >
> >
> > As I have already mentioned in another post, there is an ancient rumor that
> > Zen 3 has a better floating-point throughput per cycle than Zen 2 by 50%.
> >
> > The wider integer execution units that were mentioned in the presentation might
> > also provide a similar increase in throughput for certain operations.
> >
>
> I saw that 5950X is +27% faster than 3950X on CAD SolidWorks 2019. This is
> high compared to for example +12% on Raytracing V-Ray 4.10. Any ideas why?


On the Solidworks site the benchmark is said to be influenced mostly by single-thread processor performance.

27% is just a little above the average improvement in ST (19% IPC + 5% clock frequency), so Solidworks is a typical case, while Raytracing is below average.

Maybe Raytracing is not limited less by the core, but more by memory latency or by anything else.

Or else if Raytracing is heavily multithreaded, then the improvement of 5950X is less than for ST (claimed to be at most 20%).



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TopicPosted ByDate
Zen 3Blue2020/10/08 08:58 AM
  Zen 3Rayla2020/10/08 09:10 AM
  Zen 3Adrian2020/10/08 09:13 AM
    Does anyone know whether Zen 3 has AVX-512? (NT)Foo_2020/10/08 10:54 AM
      Does anyone know whether Zen 3 has AVX-512?Adrian2020/10/08 11:11 AM
  Zen 3 - Number of load/store units2020/10/08 09:21 AM
    Zen 3 - Number of load/store unitsRayla2020/10/08 09:28 AM
      Zen 3 - Number of load/store units2020/10/08 10:22 AM
        Zen 3 - Number of load/store unitsAdrian2020/10/08 10:53 AM
          Zen 3 - Number of load/store unitsTravis Downs2020/10/08 08:45 PM
          Zen 3 - CAD benchmarkPer Hesselgren2020/10/09 06:29 AM
            Zen 3 - CAD benchmarkAdrian2020/10/09 08:27 AM
        Zen 3 - Number of load/store unitsitsmydamnation2020/10/08 01:38 PM
          Zen 3 - Number of load/store unitsGroo2020/10/08 01:48 PM
            Zen 3 - Number of load/store unitsWilco2020/10/08 02:02 PM
              Zen 3 - Number of load/store unitsDummond D. Slow2020/10/08 03:39 PM
                Zen 3 - Number of load/store unitsDoug S2020/10/09 07:11 AM
                  Zen 3 - Number of load/store unitsDummond D. Slow2020/10/09 08:43 AM
                    Zen 3 - Number of load/store unitsDoug S2020/10/09 12:43 PM
                      N7 and N7P are not load/Store units - please fix the topic in your replies (NT)Heikki Kultala2020/10/10 06:37 AM
  Zen 3Jeff S.2020/10/08 11:16 AM
    Zen 3anon2020/10/08 12:57 PM
    Disappointing opening line in paperPaul A. Clayton2020/10/11 05:16 AM
      Thoughts on "Improving the Utilization of µop Caches..."Paul A. Clayton2020/10/14 11:11 AM
        Thoughts on "Improving the Utilization of µop Caches..."anon2020/10/15 10:56 AM
          Thoughts on "Improving the Utilization of µop Caches..."anon2020/10/15 10:57 AM
            Sorry about the messanon2020/10/15 10:58 AM
              Sorry about the messBrett2020/10/16 02:22 AM
          Caching dependence info in µop cachePaul A. Clayton2020/10/16 05:20 AM
            Caching dependence info in µop cacheanon2020/10/16 11:36 AM
              Caching dependence info in µop cachePaul A. Clayton2020/10/18 12:28 PM
  Zen 3juanrga2020/10/09 09:12 AM
  Zen 3Mr. Camel2020/10/09 05:30 PM
    Zen 3anon.12020/10/09 11:44 PM
      Cinebench is terrible benchmarkDavid Kanter2020/10/10 09:36 AM
        Cinebench is terrible benchmarkanon.12020/10/10 11:06 AM
        Cinebench is terrible benchmarkhobold2020/10/10 11:33 AM
          Some comments on benchmarksPaul A. Clayton2020/10/14 11:11 AM
            Some comments on benchmarksMark Roulo2020/10/14 02:21 PM
    Zen 3Adrian2020/10/10 12:59 AM
      Zen 3Adrian2020/10/10 01:18 AM
        Zen 3majord2020/10/15 03:02 AM
  Zen 3hobold2020/10/10 07:58 AM
    Zen 3Maynard Handley2020/10/10 09:36 AM
      Zen 3hobold2020/10/10 11:19 AM
        Zen 3anon2020/10/11 01:58 AM
          Zen 3hobold2020/10/11 11:32 AM
            Zen 3anon2020/10/11 12:07 PM
              Zen 3hobold2020/10/11 01:22 PM
    Zen 3anon2020/10/10 10:51 AM
    Zen 3Michael S2020/10/11 12:16 AM
      Zen 3hobold2020/10/11 01:13 AM
        Zen 3Michael S2020/10/11 01:18 AM
      Zen 3anon.12020/10/11 11:17 AM
  Zen 3David Hess2020/10/12 05:43 AM
    more power? (NT)anonymous22020/10/12 12:26 PM
      I think he's comparing 65W 3700X vs 105W 5800X (NT)John H2020/10/12 03:33 PM
        ?! Those are apples and oranges! (NT)anon2020/10/12 03:49 PM
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