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post #8 of (permalink) Old 07-27-2019, 06:02 PM
⤷ αC
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Quote: Originally Posted by Hwgeek View Post
This is exactly why I asked this question regarding current PassMark scores:

Many Pro app refers to this benchmark in their CPU recommendations, for example Solidworks for best ST performance CPU, and now AMD parts are on top.

Found Time machine of the page- look at "Avg. bench %":
Old scores:
Well, Solidworks users should know that Igor's Lab tests Specviewperf on his site (Eisbaer 280mm copper watercooler on all CPUs). Solidworks forum usually recommended the highest clocked lower priced mainstream i7 (in the past decade it was i7-920 for a long time then i7-2600K , i7-3770k, i7-4790k, i7-7700k, i7-8700k, etc.)
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Alignex tested the solver here: https://blog.alignex.com/solidworks-...vs-intel-video
(video might have been taken down)
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So how do cores affect your performance? It’s a very simple answer. For most common design tasks inside SOLIDWORKS, the most common CPU configuration (4 cores) is sufficient. There are certain circumstances and use cases when more cores are necessary, including:
  • Non-Linear and Dynamic Simulation
  • Flow Simulation
  • Advanced Rendering and Animation
See also https://www.pugetsystems.com/labs/ar...rformance-908/

In addition the Solidworks simulation thermal solver is partly serial in nature (due to the nature of it), scaling beyond 6 cores (Amdahl's law goes here) is minimal.


The features we have tested in SOLIDWORKS 2019 fall into one of two categories: those that benefit primarily from clock speed and those which instead scale with core count. File opening, rebuilding, motion study, and some of the simulations (stress and thermal) fell into this category. Rendering is much faster with more cores, though, as were the rest of the flow simulation tests (both normal airflow and conjugate heat transfer airflow models).
If you look at Autodesk Inventor which is DirectX the results are similar when you account for GPU. (
It’s publicly documented that the drawing view computation, FEA meshing and solving, graphical performance, rendering and importing non-CAD data all these tests are actually multi-threaded. Even with MCE enabled, the total combined processing power of both platforms is roughly the same across all cores. Ryzen at 3.4Ghz has 27.2Ghz and if at 3.7Ghz turbo has 29.6Ghz, the 8700k has 28.2Ghz across 6 cores with MCE. Please don’t comment saying this test is pointless because obviously the 8700K will be dominant with its high frequency, it might be obvious to you but it isn’t to everyone.
The best threading is on CATIA as far as I know.

It's not until Zen 2 that AMD had an out of the box IPC advantage that helped them win without clockspeed (Bulldozer architecture doesn't have the IPC even if it had clockspeed).

► Recommended GPU Projects: [email protected] , [email protected] (FP64) (AMD moreso) ► Other notable GPU projects: [email protected] (Nvidia), GPUGrid (Nvidia) ► Project list

Last edited by AlphaC; 07-27-2019 at 06:21 PM.
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