SSDBoss Review Our evaluation of 840 vs PX-128M5S

read performance

How quickly data is read from the drive

4K Random Read

write performance

How quickly data is written to the drive

4K Random Write

real world benchmarks

How well the drive performs common tasks

AS SSD ISO Copy

Benchmarks

How well the drive performs on common benchmarks

Passmark Disk Rating, AS SSD Score and Tom's Hardware Storage Bench

SSDBoss Score

read performance, write performance, real world benchmarks and Benchmarks

Winner
Samsung 840 

SSDBoss recommends the Samsung 840  based on its read performance, write performance and real world benchmarks.

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Differences What are the advantages of each

Front view of Samsung 840

Reasons to consider the
Samsung 840

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Faster 4k random write 76.07 MB/s vs 17.98 MB/s Around 4.2x faster 4k random write
Faster 4k random read 303.68 MB/s vs 234.04 MB/s Around 30% faster 4k random read
Higher capacity 250 GB vs 128 GB More than 95% higher capacity
Lighter 53 g vs 75 g Around 30% lighter
Higher AS SSD score 1,010 pts vs 828 pts More than 20% higher AS SSD score
Front view of Plextor PX-128M5S

Reasons to consider the
Plextor PX-128M5S

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Faster tom's storage bench application 589 pts vs 469 pts More than 25% faster tom's storage bench application
Higher passmark rating 3,222 pts vs 2,563 pts More than 25% higher passmark rating

Benchmarks Real world tests of Samsung 840 vs PX-128M5S

4K Random Read

Samsung 840
303.68 MB/s
PX-128M5S
234.04 MB/s

4K Random Write

Samsung 840
76.07 MB/s
PX-128M5S
17.98 MB/s

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