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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.76% lower than A
Sequential write
MiB/s · higher is fasterB is 27.08% higher than A
4 KiB random read
MiB/s · higher is fasterB is 11.15% higher than A
4 KiB random write
MiB/s · higher is fasterB is 82.87% lower than A
Configuration details
| Detail | A · MacBookPro15,1 · 465 GB | B · MacBookPro17,1 · 228 GB |
|---|---|---|
| Platform | macOS | macOS |
| Sample count | 2 | 13 |
| Latest measurement | 2026-08-23 | 2026-05-20 |
| Random read IOPS | 9,937 | 11,045 |
| Random write IOPS | 48,234 | 8,261 |
| 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.