Entry level M2 Mac mini, 2023 MacBook Pro have slower SSD than predecessors

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The base model of Apple’s latest Mac mini and 2023 MacBook Pro have significantly slower SSD read and write speeds due to engineering choices compared to the previous generation models.

A teardown by Brandon Geekbit has revealed the reason on the Mac mini – the 256GB Mac mini comes with a single 256GB storage chip. The last generation M1 Mac mini came equipped with two 128GB flash chips in parallel, allowing for faster speeds.

As it turns out, the 512GB M2 Mac mini also has a single NAND chip, which means it will still have slower read/write speeds than a model with two 256GB chips. But since there was no 512GB Mac mini with an M1 Pro chip, there’s no comparison to make.

The situation is also the same on the 2023 MacBook Pro, as discovered by 9 to 5 Mac. Models with lower storage capacity have fewer Flash chips at a higher density than the previous model. This reduces the speed from what it would be, compared to what you get from parallelizing multiple flash chips.


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