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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.02% lower than A
Sequential write
MiB/s · higher is fasterB is 2.56% higher than A
4 KiB random read
MiB/s · higher is fasterB is 65.97% lower than A
4 KiB random write
MiB/s · higher is fasterB is 0.29% lower than A
Configuration details
| Detail | A · samsung SM-S948W · 512 GB | B · KPART512GBC2DVT · 476 GB |
|---|---|---|
| Platform | Android | Windows |
| Sample count | 1 | 7 |
| Latest measurement | 2026-09-14 | 2023-11-09 |
| Random read IOPS | 26,728 | 9,096 |
| Random write IOPS | 33,437 | 33,339 |
| 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.