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January 28, 2019, 10:17 |
Budget workstation
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#1 |
Senior Member
Join Date: Aug 2012
Posts: 268
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I am planning to buy a budget workstation which will be used primarily for CFD simulations in CFX and Fluent.
I have the following choices which cost almost the same: 2* 2680 v3 1* Epyc 7281 Which one would you think is better in terms of performance? Is there any better choice than these processors? In addition to these processors, an amd epyc 7551 es that has 32 cores is sold $599 in ebay. Does it worth buying? |
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January 29, 2019, 11:39 |
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#2 |
Senior Member
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I know that engineering sample processors do not have good performance as OEM ones.
Could you please share your advice on the two processors? |
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January 29, 2019, 16:40 |
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#3 |
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
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Tough call. If you intend to get only one Epyc CPU without an upgrade path to a second CPU, get one with a P suffix. They are generally cheaper than their dual-socket capable counterparts.
But then again, the dual Xeon system will be slightly faster for pretty much anything. So the only reason to go Epyc seems to be an upgrade path with a second CPU. This would require you to buy a dual-socket board. Have you factored in the cost for memory? Depending on how much RAM you need, Xeon E5 v2 with cheap DDR3 is still a valid budget option. I can't recommend Epyc ES CPUs. All I read about them was from people having issues getting them to run at all. |
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January 30, 2019, 07:48 |
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#4 | |
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Quote:
Is it possible to estimate how slow a dual 2680 v3 will be compared to a dual 2680 v2 for CFD simulations in CFX? Does it differ too much? As you said, DDR3 is cheap and I can save money to buy a SSD drive, but it depends on how slow will be a v2 than v3. |
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January 30, 2019, 13:11 |
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#5 | |||
Super Moderator
Alex
Join Date: Jun 2012
Location: Germany
Posts: 3,396
Rep Power: 46 |
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