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Brian

SSD
Samsung 840 EVO mSATA SSD Review Discussion

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The Samsung 840 EVO is an mSATA SSD that is the first to hit the 1TB capacity point. Though it has a compact mSATA form factor, roughly a quarter of the size of a standard 2.5” SSD, it packs the performance punch of its larger siblings. Ultra-thin laptops have been limited in their storage capacity up until now. Taking advantage of Samsung’s advances in flash memory, the 840 EVO mSATA SSD will take portable computing capacity and speeds in ultra-thin computers that was previously unattainable. To get to the 1TB capacity point, Samsung uses a total of four flash memory packages, each having 16 dense layers of 128Gb TLC chips.

Samsung 840 EVO mSATA SSD Review

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TLC, at least Samsung's version, appears to be the solution to the price/capacity battle for consumer SSD. It's not inherently evil and keeps the price of SSDs under control. I'd guess we'll see more of it soon as the other majors struggle to catch up to Samsung, who's clearly dominating in this space.

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The normal Samsung 840 EVO uses fast SLC memory to cache write operations. I would prefer an mSATA device that has 1/3 less capacity but comes with SLC caching as well. Instead they opted for more capacity which is kind of sad. The combination of eDrive support (hardware supported encryption) and SLC would have made it the most suitable drive for the Surface Pro 2.

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