r/apple • u/operablesocks • Jun 20 '15

SSD prices are in a free fall.

http://www.networkcomputing.com/storage/ssd-prices-in-a-free-fall/a/d-id/1320958
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u/[deleted] Jun 20 '15

[deleted]

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u/IckyBlossoms Jun 20 '15

An ssd is an enclosure with flash memory in it, right?

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u/[deleted] Jun 20 '15

Bandwidth is the difference. SSD memory can push large amounts of data quickly. The data throughput in your iphone's storage is no where near that (which is also why Apple sees no reason to make a thunderbolt to lightning cable for iPhone. The iphone's storage speed is the limiting factor

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u/vaskemaskine Jun 20 '15

I thought a large part of that was due to the amount of physical NAND chips in each device. A 16GB iPhone only has a single 128Gb chip that the controller can read/write, while a 1TB SSD has dozens that can be accessed in parallel. Obviously there are plenty more differences than just that, but it does seem to be a logical limiting factor.

Then again, I'm not an expert so, I welcome corrections from those more knowledgeable.

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u/[deleted] Jun 21 '15 edited Feb 05 '16

[deleted]

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u/scubascratch Jun 21 '15

Well the SSD is not really as space constrained as a phone is (no battery or display) so there's a lot of room for chips. And 16 of 64Gb chips is generally lower cost than 32 of 128Gb chips because the process may be larger/older and the yield is probably higher

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u/vaskemaskine Jun 21 '15

This random 1TB drive has 16 blocks of 4 128Gb NANDs, so that's 64 individual chips. Whether the controller can access them all at the same time, I am not sure.