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Compare storage performance

Choose two Models, then select Compare. You can compare different storage capacities.

Model A

realme RMX3301

128 GB · Android

Sample count: 6

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Model B

samsung SM-N976U

256 GB · Android

Sample count: 5

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Your comparison

Storage performance

Swap A & B

Sequential read

MiB/s · higher is faster
A realme RMX3301 · 128 GB1,104.17
B samsung SM-N976U · 256 GB1,103.83

B is 0.03% lower than A

Sequential write

MiB/s · higher is faster
A realme RMX3301 · 128 GB520.15
B samsung SM-N976U · 256 GB296.67

B is 42.97% lower than A

4 KiB random read

MiB/s · higher is faster
A realme RMX3301 · 128 GB31.96
B samsung SM-N976U · 256 GB29.65

B is 7.23% lower than A

4 KiB random write

MiB/s · higher is faster
A realme RMX3301 · 128 GB27.06
B samsung SM-N976U · 256 GB29.52

B is 9.07% higher than A

Configuration details

DetailA · realme RMX3301 · 128 GBB · samsung SM-N976U · 256 GB
PlatformAndroidAndroid
Sample count65
Latest measurement2024-04-242025-10-24
Random read IOPS8,1807,589
Random write IOPS6,9287,556
All capacitiesView 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.

How the tests work · Browse all results