RAM for AMD Ryzen 9 5950x: 2 vs 4 for FEA

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SUMMARY

The discussion centers on the optimal RAM configuration for a computer built around the AMD Ryzen 9 5950X, specifically for Finite Element Analysis (FEA) using software like Ansys and Comsol. Users debate whether to use 2x64GB or 4x32GB RAM configurations, noting that the Ryzen 9 5950X supports dual memory channels, which may not yield significant performance differences between the two setups. However, opting for 2x64GB allows for future upgrades to 256GB, while 4x32GB may limit expansion options. Ultimately, the choice hinges on balancing current needs with future scalability.

PREREQUISITES
  • Understanding of AMD Ryzen 9 5950X architecture
  • Familiarity with dual-channel memory configurations
  • Knowledge of RAM specifications, particularly 64GB and 32GB modules
  • Experience with FEA software such as Ansys and Comsol
NEXT STEPS
  • Research the performance impact of dual-channel vs. quad-channel memory configurations
  • Explore RAM compatibility and options for the AMD Ryzen 9 5950X
  • Investigate memory upgrade paths for maximizing RAM in high-performance computing
  • Learn about optimizing FEA software performance with adequate memory resources
USEFUL FOR

This discussion is beneficial for computer builders, engineers, and researchers involved in high-performance computing, particularly those utilizing FEA software for complex simulations.

KyleGranger
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TL;DR
Is it better to use 2 sticks or 4 of RAM to achieve the same total memory
I am looking to build a computer using the AMD Ryzen 9 5950x. I am wondering I will be better off with 2 or 4 sticks of RAM. I will be using this for FEA.
 
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If my search went right, it's limited to two memory channels anyway. So two or four stick - there should be no noticeable difference.
On the other hand, with two stick you will have free upgrade option for the future (I guess the usual motherboards has four slots).
 
Rive said:
If my search went right, it's limited to two memory channels anyway. So two or four stick - there should be no noticeable difference.
On the other hand, with two stick you will have free upgrade option for the future (I guess the usual motherboards has four slots).
Yeah I think you're right about two channels. What do you mean by having a free upgrade option in the future?
 
If you have two sticks in a four slot motherboard, then more memory is just buying two more sticks.
With all slots full, it's far more fuss.
 
O ok I see. I'm planning to max out the memory at 128 GB so I'm trying to figure out if I should go 2x64 or 4x32. It looks like there are far less options for 64 GB sticks though.
 
But if you get 2 x 64gb for 128gb then you have room to further expand to 256gb in the future.
 
KyleGranger said:
I'm planning to max out the memory at 128 GB
What kind of home computer software needs that kind of memory? Some kind of game? Massive data manipulation?
 
phinds said:
What kind of home computer software needs that kind of memory? Some kind of game? Massive data manipulation?
The CPU and motherboard max out at 128GB so I think I'll be running this amount for a while.

I'm running Ansys and Comsol. With multiple simulations, it's pretty taxing.
 
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