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Written by Olin Coles   
Wednesday, 22 September 2010
Table of Contents: Page Index
OCZ RevoDrive PCI-Express SandForce SSD
Features and Specifications
Closer Look: OCZ RevoDrive PCI-E SSD
SandForce PCI-E SSD Anatomy
SSD Testing Methodology
AS-SSD Benchmark
ATTO Disk Benchmark
CrystalDiskMark 3.0 Tests
Iometer IOPS Performance
EVEREST Disk Benchmark
HDD vs Hybrid Drive vs SSD
OCZ RevoDrive Conclusion

ATTO Disk Benchmark

The ATTO Disk Benchmark program is free, and offers a comprehensive set of test variables to work with. In terms of disk performance, it measures interface transfer rates at various intervals for a user-specified length and then reports read and write speeds for these spot-tests. There are some minor improvements made to the 2.46 version of the program that allow for test lengths up to 2GB, but all of our benchmarks are conducted with 256MB total length. Additionally, ATTO Disk Benchmark offers a queue depth range of 2-10, however our tests use the default value of 4. ATTO Disk Benchmark requires that an active partition be set on the drive being tested, which is formatted to the NTFS file system. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.

ATTO-Disk-Benchmark-OCZ-Revo-SSD-QD4.png

Our basic bandwidth speed tests begin with the OCZ Revo SSD installed on the X58-Express motherboard, as the ATTO Disk Benchmark tool performs file transfers ranging from 0.5 KB to 8192 KB. The 120GB model we received reveals 533 MBps maximum read speed that plateaus from 128-8192 KB file chunks at a queue depth of 4, and 453 MBps peak write bandwidth plateaus from 64-8192 KB similar to a single SandForce SSD. OCZ's reviewer guide suggests that ATTO be tested with a queue depth of 10, which offered slightly different results:

ATTO-Disk-Benchmark-OCZ-Revo-SSD-QD10.png

At QD-10 the OCZ RevoDrive improves 6 MBps to 539 MBps maximum read speed that plateaus from 128-8192 KB file chunks, and an identical 453 MBps peak write bandwidth plateaus from 64-8192 KB. Since all previous ATTO tests were conducted with the default queue depth of 4, here's how the collection stacks up:

ATTO-Disk-Benchmark_Results.png

Although not charted above, a pair of SandForce-driven SF-1200 SSDs configured with 128K-stripes in a RAID-0 set produced 579 MBps peak read speeds, and 545 MBps peak write bandwidth.

Drive Hardware

In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool...



 

Comments 

 
# RE: OCZ RevoDrive PCI-Express SandForce SSDfunkz 2010-09-22 01:52
Page 4 incorrectly states "Silicon Image defines their SiI3124 chip as a PCI-Express to SATA-3GB/s controller" when it's PCI-X as listed elsewhere in the review. The SiI3124 is ancient, strange that OCZ would choose to use it since the PCI-E has to be bridged to PCI-X first with the Pericom, when there are native PCI-E RAID controllers readily available, such as the SiI3132 for example. But why even bother using SATA on a card? Instead of this convoluted process of PCI-E to PCI-X to SATA RAID to NAND, how about a simple PCI-E NAND controller?
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# Platform dependant?RealNeil 2010-09-22 02:45
I wonder if the drive would perform as well on a P55 mainboard?
They have certain bandwidth restrictions on the PCI-E bus with multiple PCI-E slots occupied concurrently. (X16 is divided into X8 times two)
I just wonder if this architecture would effect the output of the drive, and if the drive would effect the output of the Video Card?
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# DESEMPENHO DOS DRIVES SSDSandro 2010-09-22 03:27
VEJA SO, SANDRO, QUE A INDUSTRIA TENTOU COLOCAR UM PREÇO ALTO NESTE TIPO DE "STORAGE DEVICE" MAS... NAO COLOU.
PARECE QUE VAO MUDAR A TATICA!
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# RE: DESEMPENHO DOS DRIVES SSDRealNeil 2010-09-22 03:54
Did he say?: SO SEE, SANDRO, THAT TRIED TO PUT AN INDUSTRY'S HIGH PRE THIS KIND OF "STORAGE DEVICE" BUT ... Not getting through. IT SEEMS THAT WILL CHANGE THE TACTIC!
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# TranslationGustavo 2010-09-22 22:50
What he said can roughly be translated as( not translated work by word, but a little better translation): "You see, Sandro,the industry tried to put a high price in this type of Storage device...but it didnt worked out. Now it look like they are going to change tatics."

Aside from the tranlation, can someone tell me if this type of storage( via Pci-e)is bootable??
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# RE: TranslationRealNeil 2010-09-23 04:25
Ha-Ha! I used Google Translate on it and that's the best it would do for me. I don't understand Portuguese at all. You've made it much clearer to me what he meant. Thank You.
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# RE: TranslationRealNeil 2010-09-23 04:30
As to the bootable, check OZC's site for more info on this device. It's bootable with some motherboards and is not with others.
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# RE: TranslationAdam 2010-09-23 04:33
It is, although it's fairly dependant on the motherboard.

I'd guess quite a lot will need bios updates.
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# RE: RE: TranslationOlin Coles 2010-09-23 06:55
Most current-generation motherboards will support Revo as a boot device, such as Intel's 5x series and AMD's 8xx series, but older motherboards may require a BIOS update.
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# RE: OCZ RevoDrive PCI-Express SandForce SSDRobert17 2010-09-22 04:26
Nice review. Couple of questions: this drive is very reminiscent of the ANS-9010 product which I felt at the time was very forward-looking. Any chance that this could be THE direction SSD products will be headed by all manufacturers? (I'm guessing that you are provided a bit more insight on an average day)

I notice the idle power consumption on the data sheet provided by OCZ is 7W. Although still small, it seems to be much higher than other SSDs. Is this correct? If so, is it an artifact of having two controllers on the card or of being a PCI-E footprint? Any idea?
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# AnswersOlin Coles 2010-09-22 07:50
@ funkz: Page 4 is actually correct, as I re-state Silicon Image's product description: siliconimage.com/products/product.aspx?pid=27
I agree with you about the controller; it works, but better options exist. Perhaps it was a cost benefit issue.

@ Neil: OCZ doesn't recommend motherboards with restrictive bandwidth on the PCI-Express bus, and the P55 motherboard would be a concern if SLI or CFX were used. If it's a single VGA with Revo on P55, I don't see a problem.

@ Robert: A standard SSD has a controller and NAND, while the Revo has twice the amount of NAND ICs, a RAID processor, and PCI-E bridge. This is where the extra power consumption comes from.
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# Beware Crosshair IV ownersJethro 2010-09-22 08:31
Be careful about purchasing the Revodrive before checking compatibility on OCZ's site. The Crosshair IV and I think the EVGA X758 SLI board does not work with the Revodrive. ASUS has yet to fix their BIOS to enable the drive to work and I don't know about the EVGA.
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# RE: Beware Crosshair IV ownersOlin Coles 2010-09-22 08:37
To be more specific, Jethro is referring to the OCZ RevoDrive as the computer's boot drive. It will still work as a secondary drive.
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# liveonc.weebly.comJay 2010-09-23 08:52
Would have preferred if they offered a PCIe 2.0 x16 SSD with 4-8 SiI3124 in 16 RAID 0 or 8 RAID 1+0 even if it's "only" a 120GB SSD, to make most of the cheap PCI-X controller & most of the MLC-NAND memory using all 16 PCIe lanes.
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