SSDBoss Review Our evaluation of 840 vs M500

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, AS SSD Score and Tom's Hardware Storage Bench

SSDBoss Score

read performance, write performance, real world benchmarks and Benchmarks

Winner
Crucial M500 

SSDBoss recommends the Crucial M500  based on its write performance, real world benchmarks and 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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Significantly faster 4k random read 303.68 MB/s vs 126.46 MB/s Around 2.5x faster 4k random read
Larger cache 256 MB vs 24 MB Around 10.8x larger cache
Significantly lower 4k random read access time 0.82 ms vs 1.98 ms 2.4x lower 4k random read access time
Lower avg. power consumption 1.69 Watts vs 2.13 Watts More than 20% lower avg. power consumption
Higher MTBF 1,500,000 hours vs 1,200,000 hours 25% higher MTBF
Slightly lighter 53 g vs 64 g More than 15% lighter
Lower 4k random write access time 3.29 ms vs 3.78 ms Around 15% lower 4k random write access time
Faster photoshop lens filter 56.1 s vs 57.4 s Almost the same
Front view of Crucial M500

Reasons to consider the
Crucial M500

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Much higher capacity 960 GB vs 250 GB More than 3.8x higher capacity
Faster tom's storage bench application 605 pts vs 469 pts Around 30% faster tom's storage bench application
Significantly more capacity per dollar 3.2 GB/$ vs 1.84 GB/$ Around 75% more capacity per dollar
Slightly higher PCMark vantage score 24,678 pts vs 23,328 pts More than 5% higher PCMark vantage score
Faster AS SSD ISO copy 306.5 MB/s vs 188.99 MB/s More than 60% faster AS SSD ISO copy
Faster sequential write 400 MB/s vs 330 MB/s More than 20% faster sequential write
Faster random write 80,000 IOPS vs 70,000 IOPS Around 15% faster random write

Benchmarks Real world tests of Samsung 840 vs Crucial M500

4K Random Read

Samsung 840
303.68 MB/s
Crucial M500
126.46 MB/s

4K Random Write

Samsung 840
76.07 MB/s
Crucial M500
66.2 MB/s

Windows 7 Boot-up Time

Avg. Power Consumption

Samsung 840
1.69 Watts
Crucial M500
2.13 Watts

4K Random Read Access Time

Samsung 840
3.29 ms
Crucial M500
3.78 ms

4K Random Write Access Time

Samsung 840
0.82 ms
Crucial M500
1.98 ms

Reviews Word on the street

Samsung 840  vs Crucial M500 

9.0
9.4
When looking at cost per GB, it also reaches a very good result, making the M500 a great all-around drive that'll be an excellent choice for any user who's looking for fast SSD storage without breaking the bank.
Crucial M500

7.0
9.0
Well OK, it still has an eye-watering price tag, but given how expensive solid state drives were even a year ago, it's an impressively low price point.
Crucial M500

Overall

8.3 Out of 10
9.2 Out of 10

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