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Storage performance
Sequential read
MiB/s · higher is fasterSame measured average
Sequential write
MiB/s · higher is fasterB is 19.62% higher than A
4 KiB random read
MiB/s · higher is fasterB is 21.26% higher than A
4 KiB random write
MiB/s · higher is fasterB is 104.74% higher than A
Configuration details
| Detail | A · vivo V2515 · 512 GB | B · Xiaomi 2407FPN8EG · 512 GB |
|---|---|---|
| Platform | Android | Android |
| Sample count | 12 | 16 |
| Latest measurement | 2026-06-23 | 2026-07-10 |
| Random read IOPS | 11,338 | 13,749 |
| Random write IOPS | 7,423 | 15,197 |
| 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.