Is a used threadripper practical?

[worthlessfork]

I am looking to upgrade my desktop to run FEA simulations a little faster and I'm looking at some older threadrippers to replace the ryzen 7 3700x that I have in my PC currently. I can spend a max of 500 on this upgrade but would prefer a little less. I see there are some solid threadripper 1950x cpu's on ebay going for good prices and this would be a doubling of cores for me. If people have any other CPU recommendations for a workbench focus but used for occasional gaming PC I would love to hear them.  

[FI Fheonix]

1 minute ago, worthlessfork said:

I am looking to upgrade my desktop to run FEA simulations a little faster and I'm looking at some older threadrippers to replace the ryzen 7 3700x that I have in my PC currently. I can spend a max of 500 on this upgrade but would prefer a little less. I see there are some solid threadripper 1950x cpu's on ebay going for good prices and this would be a doubling of cores for me. If people have any other CPU recommendations for a workbench focus but used for occasional gaming PC I would love to hear them.  

5800X would be good for your use case. If you want other options there's also the 11700KF, 1850K, 13600K. and the 5900X.

[Zando_]

Not if you run windows. They never fixed the fTPM stutter on Threadripper, only mainstream Ryzen, so have fun when Windows 11 becomes a needed upgrade. If you're running Linux then you should be fine, though they aren't very fast chips vs even modern mainstream options, so the only practical reason to get them is for RAM bandwidth and/or PCIe lanes.

[Vishera]

1 minute ago, micha_vulpes said:

My 5700x Does 15,300. A 5800x does 15500.

 

These are rookie numbers, My 5700X does 16096:

[Kilrah]

First gen TR was a bit of a dog, yeah quite a few cores, but they're sloooooow. Only reason you'd want one is if you have no particular need for compute performance but need lots of PCIe expansion.

[igormp]

1 hour ago, worthlessfork said:

I am looking to upgrade my desktop to run FEA simulations a little faster and I'm looking at some older threadrippers to replace the ryzen 7 3700x that I have in my PC currently. I can spend a max of 500 on this upgrade but would prefer a little less. I see there are some solid threadripper 1950x cpu's on ebay going for good prices and this would be a doubling of cores for me. If people have any other CPU recommendations for a workbench focus but used for occasional gaming PC I would love to hear them.  

Are you aware if you're being bottlenecked by memory bandwidth? If so, then a threadripper would beat any ryzen since you can get double the number of channels (something that most folks completely ignored in this thread). Usually CFD stuff is really memory-bandwidth hungry, so that may be of relevance.

 

Otherwise, you're better of with a high-core Ryzen as others mentioned already. At this price point, you can just a slap a 5950x in there.

[freeagent]

You can have all the bandwidth in the world, but if you have the IPC of 4th gen Intel than what's the point? Unless you need all the threads, but even still. 

 

FWIW my 58X3D does 152xx in R23 using 11.

[jaslion]

Your 3700x is not far behind a 1950x.

 

Then all the issues of the 1950x with single core, ram, ccx transfer issues,... makes 1st gen threadripper a avoid at all cost beta cpu thing. Hence why they are cheap

 

 

[worthlessfork]

Thanks for the reccomendations everyone, looks like a 5900x or 5950x is the path to go, that will be nice because it'll just drop in. Another thing I am curious about is I have a A520M motherboard, pretty much the cheapest one I could find at the time. If I upgrade the CPU and I have 64gb of the Trident Z Neo 3600 will it start to bottleneck at my motherboard?

 

[YoungBlade]

28 minutes ago, worthlessfork said:

Thanks for the reccomendations everyone, looks like a 5900x or 5950x is the path to go, that will be nice because it'll just drop in. Another thing I am curious about is I have a A520M motherboard, pretty much the cheapest one I could find at the time. If I upgrade the CPU and I have 64gb of the Trident Z Neo 3600 will it start to bottleneck at my motherboard?

 

The real question is what your motherboard's VRM is like. What specific board do you have?

 

Unfortunately, A520 boards don't allow you to do much tweaking, otherwise you could use PBO to optimize the amount of power the chip draws to somewhat circumvent that limitation. You may be able to invest in some little heatsinks to put on the VRMs to help cool them, which could help, but if you're going to be running long, all-core workloads, the motherboard's VRMs could potentially become an issue.

[worthlessfork]

The motherboard is the GIGABYTE A520M AORUS ELITE mATX AM4. I do plan on running all core loads(thermal simulations) that can take up to half an hour to run so maybe a better motherboard is due as well. 

[freeagent]

5900X really shines when it is not at stock

 

You should pair it with something that has a good VRM. I let mine sit for days at a time at 200w no problem. Its a good CPU.. but if you are going to buy a board and CPU AM4 should maybe be left in the past..

[r00tb33r]

 

Thermal throttling on all core bench, sadly.  When I was looking to replace my X58 system I thought maybe I'll find me a Threadripper.  I found that Threadripper cores are a bit on the weak side, even if there are a lot of them.  With consumer CPUs you can get a better balance between single and multicore performance.