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Models with the most samples
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Storage performance
Sequential read
MiB/s · higher is fasterB is 0.04% lower than A
Sequential write
MiB/s · higher is fasterB is 19.76% lower than A
4 KiB random read
MiB/s · higher is fasterB is 68.71% higher than A
4 KiB random write
MiB/s · higher is fasterB is 15.93% lower than A
Configuration details
| Detail | A · Samsung SSD 850 EVO 1TB · 931 GB | B · samsung SM-M066B · 128 GB |
|---|---|---|
| Platform | Windows | Android |
| Sample count | 1 | 2 |
| Latest measurement | 2023-01-12 | 2026-07-25 |
| Random read IOPS | 6,828 | 11,520 |
| Random write IOPS | 12,200 | 10,256 |
| 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.