64GB won't make renders faster — but it'll stop them from failing.

Not really. Render time is about your CPU or GPU, not RAM. More RAM doesn’t make the engine crunch numbers faster.

Where 64GB helps is when your scene is so complex it doesn’t fit in 32GB. Once you hit that wall, Blender starts swapping to disk, which kills performance — or just crashes. So if you’re working with massive textures, high-poly geometry, or lots of instances, the extra headroom keeps things stable.

If your scenes currently fit in 32GB without issues, you won’t see a difference upgrading. Check your memory usage during a render. If you’re consistently under 28GB, save your money. If you’re hitting 30-31GB and getting hangs, 64GB is worth every penny.

Don’t confuse stability with speed.