SSDBoss Review Our evaluation of 840 Pro vs M550

read performance

How quickly data is read from the drive

4K Random Read, 4K Random Read Access Time and 512K Sequential Read

write performance

How quickly data is written to the drive

4K Random Write, 4K Random Write Access Time and 512K Sequential Write

real world benchmarks

How well the drive performs common tasks

Windows 7 Boot-up Time, Photoshop Lens Filter and AS SSD ISO Copy

Benchmarks

How well the drive performs on common benchmarks

PCMark Vantage and AS SSD Score

No winner declared

Too close to call

Differences What are the advantages of each

Front view of Samsung 840 Pro

Reasons to consider the
Samsung 840 Pro

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Significantly higher capacity 512 GB vs 64 GB 8x higher capacity
Faster 4k random read 311.34 MB/s vs 162.18 MB/s More than 90% faster 4k random read
Faster 4k random write 130.58 MB/s vs 73.78 MB/s More than 75% faster 4k random write
Significantly higher PCMark vantage score 25,929 pts vs 19,156 pts More than 35% higher PCMark vantage score
Lower 4k random write access time 1.91 ms vs 3.39 ms Around 45% lower 4k random write access time
Lower 4k random read access time 0.8 ms vs 1.54 ms Around 50% lower 4k random read access time
Lower avg. power consumption 2 Watts vs 2.35 Watts Around 15% lower avg. power consumption
Default view of Crucial M550

Reasons to consider the
Crucial M550

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SSDBoss is not aware of any important advantages of the Crucial M550 vs the Samsung 840 Pro.

Benchmarks Real world tests of 840 Pro vs Crucial M550

4K Random Read

840 Pro
311.34 MB/s
Crucial M550
162.18 MB/s

4K Random Write

840 Pro
130.58 MB/s
Crucial M550
73.78 MB/s

Windows 7 Boot-up Time

840 Pro
7.8 s
Crucial M550
7.9 s

Avg. Power Consumption

840 Pro
2 Watts
Crucial M550
2.35 Watts

4K Random Read Access Time

840 Pro
1.91 ms
Crucial M550
3.39 ms

4K Random Write Access Time

840 Pro
0.8 ms
Crucial M550
1.54 ms

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