灵越 ssd 速度慢_为什么较小的SSD速度较慢？
灵越 ssd 速度慢
If you happen to be researching specific computer hardware like SSDs, for instance, you might expect the smaller ones to be faster than the larger ones. But is that actually the case or is the opposite true? Today’s SuperUser Q&A post has the answer to a curious reader’s question.
例如，如果您正在研究特定的计算机硬件(例如SSD)，则可能希望较小的硬件比较大的硬件更快。 但这是事实还是相反？ 今天的“超级用户问答”帖子回答了一个好奇的读者的问题。
Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.
今天的“问答”环节由SuperUser提供，它是Stack Exchange的一个分支，该社区是由社区驱动的Q＆A网站分组。
Photo courtesy of Hong Chang Bum (Flickr).
问题 (The Question)
SuperUser reader PGmath wants to know why smaller SSDs are slower:
超级用户阅读器PGmath想知道为什么较小的SSD速度较慢：
I was reading this article on testing SSDs from Tom’s Hardware and came across the following claim:
我正在阅读有关测试Tom's Hardware的SSD的这篇文章，并遇到以下主张：
- With SSDs, performance varies by capacity point. Smaller drives tend to be slower than larger ones, even in the same family. 使用SSD时，性能随容量点而变化。 较小的驱动器往往要比较大的驱动器慢，即使在同一个系列中也是如此。
However, the article does not back up the claim or explain why. It does not seem intuitive to me that smaller SSD drives would be slower. I would expect it to be the other way around since a larger drive has a wider “area” to access via the same bandwidth. In researching SSDs, I have found that many sites do not even include SSD drives smaller than 240 GB in their comparisons.
但是，本文不支持该主张或解释原因。 在我看来，较小的SSD驱动器会慢一些，这并不直观。 我希望这是相反的方法，因为更大的驱动器具有更宽的“区域”，可以通过相同的带宽进行访问。 在研究SSD时，我发现许多站点甚至没有包含小于240 GB的SSD驱动器。
So, is it true that smaller (capacity) SSDs are slower? If so, why is that the case?
那么，较小的(容量)SSD确实较慢吗？ 如果是这样，为什么会这样呢？
Why are smaller SSDs slower?
为什么较小的SSD速度较慢？
答案 (The Answer)
SuperUser contributors magicandre1981 and Hakan Lindqvist have the answer for us. First up, magicandre1981:
超级用户贡献者magicandre1981和Hakan Lindqvist为我们找到了答案。 首先，magicandre1981：
Larger SSDs are faster because they use more Channels in parallel while smaller ones only use a few channels (4 instead of 8):
较大的SSD更快，因为它们并行使用更多的通道，而较小的SSD仅使用几个通道(4个而不是8个)：
Followed by the answer from Hakan Lindqvist:
随后是Hakan Lindqvist的回答：
The higher capacity variants of an SSD model often get their higher capacity from simply having more NAND flash chips of the same type as the lower capacity variants. Having more NAND flash chips allows for a design where the controller on the SSD can access more data in parallel, allowing for higher speeds.
SSD模型的较高容量变体通常是通过简单地拥有更多与较低容量变体相同类型的NAND闪存芯片来获得较高容量的。 拥有更多的NAND闪存芯片可实现SSD上的控制器可以并行访问更多数据的设计，从而实现更高的速度。
Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.
有什么补充说明吗？ 在评论中听起来不错。 是否想从其他精通Stack Exchange的用户那里获得更多答案？ 在此处查看完整的讨论线程。
翻译自: https://www.howtogeek.com/248827/why-are-smaller-ssds-slower/
灵越 ssd 速度慢