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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.10% lower than A
Sequential write
MiB/s · higher is fasterB is 40.99% lower than A
4 KiB random read
MiB/s · higher is fasterB is 5.19% lower than A
4 KiB random write
MiB/s · higher is fasterB is 8.61% lower than A
Configuration details
| Detail | A · iPad Pro 12.9-inch (3rd generation) Wi-Fi + Cellular(iPad8,7) · 512 GB | B · iPad Pro 11-inch Wi-Fi + Cellular(iPad8,3) · 256 GB |
|---|---|---|
| Platform | iOS | iOS |
| Sample count | 20 | 84 |
| Latest measurement | 2025-03-23 | 2026-06-09 |
| Random read IOPS | 5,392 | 5,113 |
| Random write IOPS | 4,278 | 3,910 |
| 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.