SSDBoss Review Our evaluation of 840 Pro vs Vector

read performance

How quickly data is read from the drive

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

write performance

How quickly data is written to the drive

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

real world benchmarks

How well the drive performs common tasks

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


How well the drive performs on common benchmarks

840 Pro
Passmark Disk Rating, PCMark Vantage, AS SSD Score and 1 more

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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Faster 4k random write 130.58 MB/s vs 100.6 MB/s Around 30% faster 4k random write
Faster windows 7 boot-up time 7.8 s vs 10 s More than 20% faster windows 7 boot-up time
Significantly lighter 53 g vs 115 g 2.2x lighter
Faster 512K sequential write 499.3 MB/s vs 382.44 MB/s More than 30% faster 512K sequential write
Faster tom's storage bench application 733 pts vs 620 pts Around 20% faster tom's storage bench application
Lower avg. power consumption 2 Watts vs 2.4 Watts More than 15% lower avg. power consumption
More capacity per dollar 1.83 GB/$ vs 0.93 GB/$ More than 95% more capacity per dollar
Higher PCMark vantage score 25,929 pts vs 24,230 pts More than 5% higher PCMark vantage score
Higher MTBF 1,500,000 hours vs 1,300,000 hours More than 15% higher MTBF
Lower 4k random write access time 1.91 ms vs 2.48 ms Around 25% lower 4k random write access time
Front view of OCZ Vector

Reasons to consider the
OCZ Vector

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Much larger cache 1,024 MB vs 256 MB 4x larger cache
Faster 4k random read 380.71 MB/s vs 311.34 MB/s More than 20% faster 4k random read
Slightly higher passmark rating 4,340 pts vs 3,921 pts More than 10% higher passmark rating

Benchmarks Real world tests of 840 Pro vs Vector

4K Random Read

840 Pro
311.34 MB/s
380.71 MB/s

4K Random Write

840 Pro
130.58 MB/s
100.6 MB/s

Windows 7 Boot-up Time

840 Pro
7.8 s
10 s

Avg. Power Consumption

840 Pro
2 Watts
2.4 Watts

4K Random Read Access Time

840 Pro
1.91 ms
2.48 ms

4K Random Write Access Time

840 Pro
0.8 ms
0.66 ms

Reviews Word on the street

840 Pro  vs Vector 

While single-thread random performance is only in the middle of our test group, we see very nice performance at multi-threaded reads.

If that seem incremental, going on insignificant, bear in mind that numbers above 500MB/s for peak throughput are hammering up against the maximum capabilities of the SATA6Gbps interface.


8.7 Out of 10
8.5 Out of 10


Showing 2 comments.
oh, another thing, to consider would be how would each fair after 2 or 3 years of use? Would they both be about the same would be my next question. If about the same, I'd get the OCZ because they've been at this longer and tweaking longer. But if there's a difference bigger than 10% I'd go with the faster one.
When you have a difference in score of .3, it's saying you don't feel strongly that either is better than the other. And how do we measure .3? It only shows that you wanted the Samsung to win... which is fine. No problem there because you had your reasons.. But someone who favored the OCZ could have easily pulled .3 out from somewhere and said it was the winner too. That said, they both sound like winners to me.
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