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October 24, 2019, 11:05 |
Xeon 8124 or amd 2990wx
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#1 |
New Member
Join Date: Oct 2018
Posts: 17
Rep Power: 8 |
I am planning to buy a new computer for running CFD simulations. There are two suitable devices within my budget. One is with 2*xeon 8124 CPU and the other is AMD 2990wx CPU. I have no idea for which one is more suitable?
(By the way, xeon 8124 is a 64-bit 18-core CPU and its cache organization is 1.125/18/24.75 MB. AMD 2992wx is a 32-core cpu and its cache organization is 3/16/64 MB) |
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October 24, 2019, 13:24 |
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#2 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,427
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Please do a quick forum search for TR 2990WX. The topic pops up regularly, it is a horrible choice for a dedicated CFD workstation.
Two Xeon Platinum CPUs with 18 cores each will perform better, especially for CFD. But the 8124 is not a particularly good value either. Even used, they go for 1850€ on ebay. And the main features of the more expensive Platinum CPUs are: more cores at the high end, ability to use up to 8 CPUs in a shared memory system. You need neither of these. If you want better recommendations, provide us with more information. Budget, software, licenses, DIY or prebuilt, used or new... |
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October 25, 2019, 06:27 |
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#3 |
Member
EM
Join Date: Sep 2019
Posts: 59
Rep Power: 7 |
stay well away from zen1 chips. they useless for cfd.
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October 25, 2019, 07:32 |
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#4 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,427
Rep Power: 49 |
My personal experience with a variety of CFD applications, as well as this thread here, suggest otherwise.
Second gen Threadripper CPUs with 24 and 32 cores are the exception, not the rule. And even these two are not terrible for CFD, they are just terrible value compared to the 16-core variant. |
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October 27, 2019, 23:37 |
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#5 |
New Member
Join Date: Oct 2018
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Thank you so much. I would choose Intel Xeon CPU instead of the amd's series.
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October 28, 2019, 16:48 |
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#6 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,427
Rep Power: 49 |
Just for the record: I did not necessarily recommend going down this route. It is just the faster alternative out of your two options
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amd, cpu, xeon |
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