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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 6.04% lower than A
Sequential write
MiB/s · higher is fasterB is 124.37% higher than A
4 KiB random read
MiB/s · higher is fasterB is 3.41% higher than A
4 KiB random write
MiB/s · higher is fasterB is 10.06% higher than A
Configuration details
| Detail | A · iPad17,2 · 1024 GB | B · iPad17,4(iPad17,4) · 512 GB |
|---|---|---|
| Platform | iOS | iOS |
| Sample count | 1 | 80 |
| Latest measurement | 2026-10-29 | 2026-09-19 |
| Random read IOPS | 15,198 | 15,716 |
| Random write IOPS | 10,679 | 11,753 |
| All capacities | View 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.