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A comment on Intel’s first Optane SSD: 375GB that you can also use as RAM. Parent comment

Re:Intel’s first Optane SSD: 375GB that you can also use as RAM by Dylan16807 on Sunday March 19, 2017 @07:20PM (#13910411)
> It’s closer to a block device now, the block size being 16 bytes for dual-channel DDR, 32 bytes for quad channel.

Don't forget the 8-deep prefetch buffer. The real block size is more like 128 bytes for dual channel.

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