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Storage performance

Swap A & B

Sequential read

MiB/s · higher is faster
A Mac17,3 · 460 GB5,373.36
B Mac15,11 · 926 GB5,412.17

B is 0.72% higher than A

Sequential write

MiB/s · higher is faster
A Mac17,3 · 460 GB5,118.39
B Mac15,11 · 926 GB2,338.96

B is 54.30% lower than A

4 KiB random read

MiB/s · higher is faster
A Mac17,3 · 460 GB59.51
B Mac15,11 · 926 GB36.19

B is 39.19% lower than A

4 KiB random write

MiB/s · higher is faster
A Mac17,3 · 460 GB44.00
B Mac15,11 · 926 GB30.43

B is 30.84% lower than A

Configuration details

DetailA · Mac17,3 · 460 GBB · Mac15,11 · 926 GB
PlatformmacOSmacOS
Sample count52
Latest measurement2026-07-022024-02-04
Random read IOPS15,2349,265
Random write IOPS11,2647,790
All capacitiesView Model →View Model →

Results checked · Speeds in MiB/s · About these measurements

Four tests. A clearer comparison.

Compare sequential and 4 KiB random read/write speeds side by side. Every option includes its Model, capacity and platform. You can compare 512 GB with 256 GB, including two capacities of the same Model.

How the tests work · Browse all results