Opt For The Larger SSD Capacity To Also Get A Speed Boost

Opt For the Larger SSD Capacity to Also Get a Speed Boost

If you're weighing your option between SSDs and you can't quite justify buying the bigger version, this might tip you over the edge: Generally, larger SSDs are also faster. Photo by [email protected].

As the How-To Geek explains, SSDs function using NAND chips, not the spinning platters of HDDs. In order to add more capacity to an SSD, manufacturers have to add more chips. When they do this, they usually arrange those chips so they can be used in parallel. In other words, a larger SSD can write to, say, eight NAND chips at once instead of the four that a smaller SSD would do.

This gives a speed advantage to larger capacity SSDs in terms of data throughput. While your mileage will obviously vary based on how a manufacturer built the SSD and how big of a capacity difference you're looking at, in general the smaller an SSD, the slower you can expect it to be. Though it will still be faster than most regular hard drives.

Why Are Smaller SSDs Slower? [How-To Geek]


Comments

    NAND flash storage must be erased before it can be written. The erase process is very slow (often slower than a write to an HDD). As a disk becomes full, free space reclamation must run more often, getting in the way of normal access. Bigger drives tend to have more free space, and therefore tend to run free space reclamation less often. For a storage chip that has a response time in the range of 100 nanoseconds to 250ns, unless you have a server running in the million IOPS range, it's pretty much irrelevant whether the NAND flash is configured 4 wide or 8 wide. Systems running at millions of IOPS are fairly scarce - the average desktop only runs in the 100s of IOPS range.

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