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Written by Olin Coles   
Monday, 04 April 2011
Table of Contents: Page Index
OCZ Vertex 3 SandForce SF-2281 SSD
Closer Look: OCZ Vertex 3 SSD
SandForce SF-2281 SSD Controller
Features and Specifications
SSD Testing Methodology
AS-SSD Benchmark
ATTO Disk Benchmark
CrystalDiskMark 3.0 Tests
Iometer IOPS Performance
EVEREST Disk Benchmark
PCMark Vantage HDD Tests
HDD vs Hybrid Drive vs SSD
OCZ Vertex 3 SSD Conclusion

EVEREST Disk Benchmark

Many enthusiasts are familiar with the Lavalys EVEREST benchmark suite, but very few are aware of the Disk Benchmark tool available inside the program. The EVEREST Disk Benchmark performs linear read and write bandwidth tests on each drive, and can be configured to use file chunk sizes up to 1MB (which speeds up testing and minimizes jitter in the waveform). Because of the full sector-by-sector nature of linear testing, Benchmark Reviews endorses this method for testing SSD products, as detailed in our Solid State Drive Benchmark Performance Testing article. However, Hard Disk Drive products suffer a lower average bandwidth as the capacity draws linear read/write speed down into the inner-portion of the disk platter. EVEREST Disk Benchmark does not require a partition to be present for testing, so all of our benchmarks are completed prior to drive formatting.

Linear disk benchmarks are superior bandwidth speed tools in my opinion, because they scan from the first physical sector to the last. A side affect of many linear write-performance test tools is that the data is erased as it writes to every sector on the drive. Normally this isn't an issue, but it has been shown that partition table alignment will occasionally play a role in overall SSD performance (HDDs don't suffer this problem).

The high-performance storage products tested with EVEREST Disk Benchmark are connected to the Intel SATA 6Gb/s controller and use a 1MB block size option. Read performance on the 240GB OCZ Vertex 3 SSD measured an average 469.1 MBps bandwidth with a relatively close maximum peak speed of 484.2 MBps. Everest linear write-to tests were next...

Everest-Read-OCZ-Vertex3-SandForce-SSD.png

The waveform chart below illustrates how the integrated buffer manages file transfers, and makes linear write performance appears relatively even. The results seen here are still relatively consistent compared to most other SSD products we've tested in the past. The OCZ Vertex 3 solid state drive recorded an average linear write-to speed of 465.4 MBps, with a maximum performance of 489.5 MBps.

Everest-Write-OCZ-Vertex3-SandForce-SSD.png

The chart below shows the average linear read and write bandwidth speeds for a cross-section of storage devices tested with EVEREST:

Everest-Disk-Benchmark_Results.png

Linear tests are an important tool for comparing bandwidth speed between storage products - although HDD products suffer performance degradation over the span of their areal storage capacity. Linear bandwidth certainly benefits the Solid State Drive, since there's very little fluctuation in transfer speed. This is because Hard Disk Drive products decline in performance as the spindle reaches the inner-most sectors on the magnetic platter, away from the fast outer edge.



 

Comments 

 
# Nice reviewcube 2011-04-05 08:52
"confirming the Vertex 3 as the fastest MLC SSD Benchmark Reviews has tested to date"
Pretty good statement. If i was in their ads department i would take this line and add it somewhere in the product page.
As always Olin, excellent review. with each review you provide all the important information needed to understand how these drives work.

I think is probably time to treat myself with an SSD.

Ive been waiting for these prices to come down a bit. But dam, they are persistent. gonna have to call the EU Trade commission to look up into the scheme.

I think there has to be some type of SSD price fixing going on with these companies just like we saw with the LCDs.

"LG Display, Sharp, and Chunghwa Picture Tubes agreed to plead guilty to criminal charges for participating in a liquid crystal display price-fixing conspiracy and pay $585 million in fines, the U.S. Department of Justice announced Wednesday.

Read more: #news.cnet.com/8301-1001_3-10095219-92.html#ixzz1IfIgIv49
"
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# analogyAnthony 2011-04-05 22:25
Nice review, but you've got bandwidth\IOPS analogy reversed. Consider this: if we have to move a few big things we can use high capacity(eg IOPS in your analogy) ship that is not so fast(eg bandwidth) and it would be ok, but if we need move a lot of small things one by one then we'd better get smaller ship with that is fast. SSD's are like smaller ship(actually nowadays they are more like bigger ships with high speed) - they have great IOPS performace, so it can move smaller things faster.
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# RE: OCZ Vertex 3 SandForce SF-2281 SSDAnthony 2011-04-05 22:26
But other than that it's really great review :)
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# RE: OCZ Vertex 3 SandForce SF-2281 SSDBenoit 2011-04-06 01:14
What about scores when it's connected in SATA2 ?
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# RE: RE: OCZ Vertex 3 SandForce SF-2281 SSDOlin Coles 2011-04-06 08:31
This is a SATA 6Gb/s SSD that reaches 555 MB/s, so it wouldn't be helpful to show SATA 3Gb/s scores because they would consume all available bandwidth on the interface.
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# Prove itPhace 2011-04-06 11:39
Many people looking to upgrade an existing SSD still only have SATA II. It would also be helpful to see add-in SATA III cards reviewed with a drive like this.
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# RE: Prove itOlin Coles 2011-04-06 12:10
The results published with this review have already proved the OCZ Vertex 3 SSD reaches 555 MB/s, which is more than the 300 MB/s SATA-II interface can support. There's nothing more to prove.
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# need sata 3GB scoresGeo 2011-04-06 19:45
They really should include SATA 3Gb/s numbers.There are several reasons why its important to people. The vast majority of users dont have 6GBs boards so is it worthwhile to pay the extra for a sata 6GBs drive or just go with cheaper sata 3Gbs SSD.?

Anyway something people need to be aware of is the bigger drives 240GB+ perform very different to 120GB and smaller vertex 3's.

Dont expect to get this performance with a 120GB vertex 3 or 60GB vertex 3. They get much slower with smaller capacity.
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# RE: need sata 3GB scoresOlin Coles 2011-04-06 20:44
Why would anyone buy a SATA 6Gb/s SSD without having support for this interface on their motherboard? That's like buying 2500 MHz DDR3 just to run it at 1333. There are literally a hundred SandForce-driven SSDs better suited to SATA 3Gb/s.
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# Not always saturating the connectionPhace 2011-04-06 21:45
Most normal usage is not full out saturation- it's random reads and random writes. The way the drive functions with both interfaces is notable for it's ability to handle real world usage. One could get the drive and place it in a SATA II setup now and later upgrade the connection for a reasonably decent performance improvement later. In this case, we're measuring how real world usage is found.

That's fine. I found just this sort of benchmark on another site and the results are encouraging. The site shows a number of SATA drives benchmarked both on III and on II.
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# RE: OCZ Vertex 3 SandForce SF-2281 SSDmanup85 2011-07-18 09:55
SUGGESTION.. im confuse now about what i can buy now.. Vertex 3 or Corsair Forces GT series? is already good ssd? and with the same price there is something better?
thanks
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