SSDBoss Review Our evaluation of 840 EVO vs RevoDrive X2

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

SSDBoss Score

read performance, write performance, real world benchmarks and Benchmarks

Winner
Samsung 840 EVO 

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

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Differences What are the advantages of each

Sibling view of Samsung 840 EVO

Reasons to consider the
Samsung 840 EVO

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Much larger cache 1,000 MB vs 0 MB Compared to all SSDs, 1,000 MB cache is just OK
Much faster windows 7 boot-up time 9.3 s vs 16.8 s Around 45% faster windows 7 boot-up time
Faster 4k random read 318.8 MB/s vs 251.97 MB/s More than 25% faster 4k random read
Significantly lighter 53 g vs 130 g 2.5x lighter
Much faster photoshop lens filter 56.6 s vs 72.8 s More than 20% faster photoshop lens filter
Much thinner thickness 7 mm vs 23 mm 3.3x thinner thickness
Higher PCMark vantage score 25,582 pts vs 23,101 pts More than 10% higher PCMark vantage score
Faster AS SSD ISO copy 441.16 MB/s vs 354.95 MB/s Around 25% faster AS SSD ISO copy
Slightly lower 4k random read access time 0.78 ms vs 0.99 ms More than 20% lower 4k random read access time
Front view of OCZ RevoDrive X2

Reasons to consider the
OCZ RevoDrive X2

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Significantly faster 4k random write 203.72 MB/s vs 106.65 MB/s More than 90% faster 4k random write
Faster 512K sequential write 671.29 MB/s vs 510.27 MB/s More than 30% faster 512K sequential write
Faster 512K sequential read 658.53 MB/s vs 527.52 MB/s Around 25% faster 512K sequential read
Higher MTBF 2,000,000 hours vs 1,500,000 hours Around 35% higher MTBF
Lower 4k random write access time 1.23 ms vs 2.34 ms More than 45% lower 4k random write access time
Significantly faster power consumption (Idle) 4.3 Watts vs 0.04 Watts More than 95.5x faster power consumption (Idle)

Benchmarks Real world tests of 840 EVO vs RevoDrive X2

4K Random Read

840 EVO
318.8 MB/s
RevoDrive X2
251.97 MB/s

4K Random Write

840 EVO
106.65 MB/s
RevoDrive X2
203.72 MB/s

Windows 7 Boot-up Time

840 EVO
9.3 s
RevoDrive X2
16.8 s

4K Random Read Access Time

840 EVO
2.34 ms
RevoDrive X2
1.23 ms

4K Random Write Access Time

840 EVO
0.78 ms
RevoDrive X2
0.99 ms

Reviews Word on the street

840 EVO  vs RevoDrive X2 

9.0
8.0
The RAPID mode is designed specifically to help boost random performance and uses spare CPU power and system memory capacity (up to 1GB) to act as another layer of cache.
840 EVO

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