.... there are a lot of factors at play here but I have heard recommendations on the forum of dedicating at least 8GB of ram. I think that’s a good safe start, though I have been able to handle some small datasets with 6GB as well. Never tried with any less…
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That depends again on how much of your system you dedicate to these tasks. If you set your system to fully focus on these tasks using the --p-n-thread 0 option (uses all available cores) then I wouldn’t run anything else. Given that you only have 4 cores to start with, I wouldn’t run much else on the computer personally.