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Apple Computing Products:
macOS - Desktop Hardware
Where's the "Fast Flash" ?
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<blockquote data-quote="Raz0rEdge" data-source="post: 1784267" data-attributes="member: 110816"><p>In the space of storage, there is HDD, SSD and Hybrid. HDD are traditional spinning media, SSD is all flash storage. Hybrid is what drive manufacturer's call a drive which is a HDD with a small amount flash added to it. Fusion drive is Apple's implementation of the hybrid drive likely using a regular HDD and adding some flash on the logicboard to present as a single storage device. The advantage of Fusion over Hybrid is that macOS does some extra work to keep things in the flash portion when actively/constantly being used where Hybrid uses the flash purely for caching purposes.</p><p></p><p>Looking at the <a href="https://www.ifixit.com/Teardown/iMac+Intel+21.5-Inch+Retina+4K+Display+2017+Teardown/92170#s172311" target="_blank">teardown of the 21.5" iMac on iFixit</a>, you can see the 64MB serial flash memory in this configuration. That value might change based on your iMac config, but likely is still sitting on the logicboard. Apple is likely not using Hybrid drives along with their Fusion technology since that would just cause greats amounts of confusion.</p></blockquote><p></p>
[QUOTE="Raz0rEdge, post: 1784267, member: 110816"] In the space of storage, there is HDD, SSD and Hybrid. HDD are traditional spinning media, SSD is all flash storage. Hybrid is what drive manufacturer's call a drive which is a HDD with a small amount flash added to it. Fusion drive is Apple's implementation of the hybrid drive likely using a regular HDD and adding some flash on the logicboard to present as a single storage device. The advantage of Fusion over Hybrid is that macOS does some extra work to keep things in the flash portion when actively/constantly being used where Hybrid uses the flash purely for caching purposes. Looking at the [URL="https://www.ifixit.com/Teardown/iMac+Intel+21.5-Inch+Retina+4K+Display+2017+Teardown/92170#s172311"]teardown of the 21.5" iMac on iFixit[/URL], you can see the 64MB serial flash memory in this configuration. That value might change based on your iMac config, but likely is still sitting on the logicboard. Apple is likely not using Hybrid drives along with their Fusion technology since that would just cause greats amounts of confusion. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Where's the "Fast Flash" ?
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