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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.06% lower than A
Sequential write
MiB/s · higher is fasterB is 10.10% lower than A
4 KiB random read
MiB/s · higher is fasterB is 8.93% higher than A
4 KiB random write
MiB/s · higher is fasterB is 6.88% higher than A
Configuration details
| Detail | A · iPhone X(iPhone10,6) · 64 GB | B · iPhone 8 Plus(iPhone10,5) · 64 GB |
|---|---|---|
| Platform | iOS | iOS |
| Sample count | 51 | 53 |
| Latest measurement | 2026-09-11 | 2026-03-21 |
| Random read IOPS | 4,016 | 4,374 |
| Random write IOPS | 2,259 | 2,415 |
| 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.