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Compare storage performance

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

Model A

ZADAK TWSS3 512GB

476 GB · Windows

Sample count: 1

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Model B

PNY CS900 240GB SSD

223 GB · Windows

Sample count: 1

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Your comparison

Storage performance

Swap A & B

Sequential read

MiB/s · higher is faster
A ZADAK TWSS3 512GB · 476 GB462.30
B PNY CS900 240GB SSD · 223 GB466.09

B is 0.82% higher than A

Sequential write

MiB/s · higher is faster
A ZADAK TWSS3 512GB · 476 GB94.89
B PNY CS900 240GB SSD · 223 GB410.75

B is 332.85% higher than A

4 KiB random read

MiB/s · higher is faster
A ZADAK TWSS3 512GB · 476 GB16.42
B PNY CS900 240GB SSD · 223 GB113.48

B is 590.96% higher than A

4 KiB random write

MiB/s · higher is faster
A ZADAK TWSS3 512GB · 476 GB9.30
B PNY CS900 240GB SSD · 223 GB51.82

B is 457.37% higher than A

Configuration details

DetailA · ZADAK TWSS3 512GB · 476 GBB · PNY CS900 240GB SSD · 223 GB
PlatformWindowsWindows
Sample count11
Latest measurement2026-07-182023-10-13
Random read IOPS4,20429,050
Random write IOPS2,38013,266
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