What is the sweet spot for RAM per core? Is it around 4GB?
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Depends a lot on what you're doing. Based on the assumption that it's related to suffering through Chromium builds, there's a baseline amount of memory required and then a lower amount for each added job. It helps a bit to have a ton of memory beyond that for caching though.
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amd.com/en/products/cp (32 core / 64 thread) is what I was planning on using for my new workstation build along with at least 128GB of memory.
I had trouble sourcing the parts for the overall build (particularly motherboard) in Canada and it got substantially delayed though...
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Yeah, but I wouldn't double the amount of memory if I was doing a build based on amd.com/en/products/cp (64 core / 128 thread). Most of the jobs won't even come close to 1GB.
It's more like you want ~32GB baseline, ~64GB+ for cache (ideally) and then maybe 0.5GB per CPU thread.
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