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Comment by hydroreadsstuff

How do they get 200/400GB per second RAM bandwidth? Isn't that like 4/8 channel DDR5. 4/8 times as fast as current Intel/AMD CPUs/APUs? (E.g. https://www.intel.com/content/www/us/en/products/sku/201837/... with 45.8GB/s)

Laptop/desktop have 2 channels. High-end desktop can have 4 channels. Servers have 8 channels.

How does Apple do that? I was always assuming that having that many channels is prohibitive in terms of either power consumption and/or chip size. But I guess I was wrong.

It can't be GDDR because chips with the required density don't exist, right?

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