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I benchmarked Rusts performance on 2, 4, 8 and 16 cores on several widely used crates (https://arewefastyet.pages.dev/). Performance generally improved with the number of cores, but memory made no difference. All of these crates topped out at around 1GB and additional memory didn’t improve performance.

So no, 72GB or 128GB makes no difference.

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Yes, maybe I didn't make it clear but I'm pretty sure this is not impacting for Rust. I was just wondering if it's normal to have these specs since my computer has probably "just" 32GB of RAM

I agree that memory size isn't going to matter much, but memory speed should be noticeable, especially on large projects.

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