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Why Smaller SSDs Are Slower Than Larger SSDs
How-To Geek, June 9th, 2022
June 19, 2022,
Volume 291, Issue 3

SSDs with larger capacities reliably post better performance numbers than smaller capacity drives of the same make and model. If you don't know anything about how SSDs work, this seems like a mystery, but the reason behind the slowdown makes perfect sense.

Sydney Butler writes in How-To Geek, "An SSD consists of NAND memory chips arranged in clusters, connected to an SSD controller. The controller is an intelligent device that decides where to physically store data on the SSD.

With more clusters of memory chips, each connected to the controller by a dedicated data bus, the controller can read and write data in parallel. The more clusters you have, the more independent paths there are to move data back and forth..."

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