SSDBoss Review Our evaluation of 840 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

No winner declared

Too close to call

Differences What are the advantages of each

Front view of Samsung 840

Reasons to consider the
Samsung 840

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Much faster windows 7 boot-up time 9.3 s vs 16.8 s Around 45% faster windows 7 boot-up time
Significantly larger cache 256 MB vs 0 MB Compared to all SSDs, 256 MB cache is just OK
Much faster photoshop lens filter 56.1 s vs 72.8 s Around 25% faster photoshop lens filter
Significantly lighter 53 g vs 130 g 2.5x lighter
Faster 4k random read 303.68 MB/s vs 251.97 MB/s More than 20% faster 4k random read
Much thinner thickness 7 mm vs 23 mm 3.3x thinner thickness
Front view of OCZ RevoDrive X2

Reasons to consider the
OCZ RevoDrive X2

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Much higher capacity 960 GB vs 250 GB More than 3.8x higher capacity
Much faster 4k random write 203.72 MB/s vs 76.07 MB/s Around 2.8x faster 4k random write
Much faster 512K sequential write 671.29 MB/s vs 248.62 MB/s Around 2.8x faster 512K sequential write
Faster 512K sequential read 658.53 MB/s vs 533.21 MB/s Around 25% faster 512K sequential read
Significantly lower 4k random write access time 1.23 ms vs 3.29 ms 2.7x lower 4k random write access time
Higher MTBF 2,000,000 hours vs 1,500,000 hours Around 35% higher MTBF
Faster AS SSD ISO copy 354.95 MB/s vs 188.99 MB/s Around 90% faster AS SSD ISO copy
Higher AS SSD score 1,190 pts vs 1,010 pts Around 20% higher AS SSD score
Significantly faster power consumption (Idle) 4.3 Watts vs 0.05 Watts Around 93.5x faster power consumption (Idle)

Benchmarks Real world tests of Samsung 840 vs RevoDrive X2

4K Random Read

Samsung 840
303.68 MB/s
RevoDrive X2
251.97 MB/s

4K Random Write

Samsung 840
76.07 MB/s
RevoDrive X2
203.72 MB/s

Windows 7 Boot-up Time

Samsung 840
9.3 s
RevoDrive X2
16.8 s

4K Random Read Access Time

Samsung 840
3.29 ms
RevoDrive X2
1.23 ms

4K Random Write Access Time

Samsung 840
0.82 ms
RevoDrive X2
0.99 ms

Reviews Word on the street

Samsung 840  vs RevoDrive X2 

7.0
8.0
You might be wondering why OCZ is investing in an alternative to the SATA I/O interface just when everyone else is climbing on the SATA 6Gbps bandwagon.
RevoDrive X2

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