Sequential Read Performance

Our sequential tests are conducted in the same manner as our random IO tests. Each queue depth is tested for three minutes without any idle time in between the tests and the IOs are 4K aligned similar to what you would experience in a typical desktop OS.

Iometer - 128KB Sequential Read

Sequential read performance is decent, but it leaves a bit to be desired to match the other high-end SSDs.

Iometer - 128KB Sequential Read (Power)

Fortunately the power characteristics are still very good despite the slight lack of performance.

Samsung SM951 512GB

The performance at queue depths of 1 and 2 (i.e. the most common ones) leaves room for improvement, but practically every drive is maxing out SATA 6Gbps at QD4 and higher.

Sequential Write Performance

Sequential write testing differs from random testing in the sense that the LBA span is not limited. That's because sequential IOs don't fragment the drive, so the performance will be at its peak regardless. 

Iometer - 128KB Sequential Write

The Vector 180 doesn't do any better in sequential writes and especially the 960GB model is surprisingly slow. It's quite evident that the Barefoot 3 was never designed with such a large capacity in mind as there is clearly some performance loss due to additional LBA tracking from extra NAND.

Iometer - 128KB Sequential Write (Power)

This time the power consumption isn't too good either.

Samsung SM951 512GB

While the performance scales pretty nicely, the Vector 180 seems to hit a wall at 500MB/s (450MB/s for the 960GB model). That's pretty far from the 530MB/s that OCZ rates the sequential write at.

Random Performance Mixed Read/Write Performance
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  • LB-ID - Thursday, March 26, 2015 - link

    Looks like an overpriced product that doesn't stack up against competition in the same price range. Given OCZ's extensive track record of failures and attempts to use their user base as unpaid beta testers I can understand their desire to include a feature to give more peace of mind, but in reality it's just not that useful and certainly insufficient to overcome years of accumulated ill will.
  • serndipity - Thursday, March 26, 2015 - link

    The specifications say it all.

    On a $, performance, reliability, endurance, warranty basis, the OCZ 180 falls significantly short of even the consumer grade competition (e.g. Crucial or Samsung).

    Unfortunately, the OCZ story when from deceiving investors, to customers, ending in bankruptcy.

    Sadly, the same management etc., remains in place

    Be smart and avoid OCZ
  • ocztosh - Monday, March 30, 2015 - link

    Hi LB-ID, thank you for your feedback. We have shipped countless Barefoot 3 based drives across multiple series products and never once had to rev silicon. We have made updates to firmware to continually improve our products. The addition of the PFM+ feature was a decision to support customers that are really on the edge of enthusiast and workstation. This is a required feature for many enterprise drives and we felt there was a value to including this feature into our Vector 180 Series. We agree that not every customer necessarily needs this feature, and for those customers across the client spectrum we have other BF3 based drives that do not include the additional circuitry, but for those customers that really would like that extra layer of protection we were able to integrate this feature without a price premium over our previous Vector 150 Series. We have already received a very positive response from some users but will continue to offer a range of drives to meet the needs of different user applications.
  • voicequal - Friday, March 27, 2015 - link

    Wow, great review and a ton of new tests and data. The bathtub curve on the mixed sequential read/write performance will be very interesting to compare to forthcoming NVMe drives. I was surprised by how much the IOPS were reduced by commingling of sequential reads/writes. Seems to be room for improvement in this area.
  • Ethos Evoss - Saturday, March 28, 2015 - link

    The worst company of SSD's some OCZ or OWC or PVC .. jeez trash.. it's been sold to toshiba anyway ..
  • ocztosh - Monday, March 30, 2015 - link

    Hello Ethos Evoss. We are sorry that you feel this way and/or if you had a negative experience in the past. We are indeed now part of Toshiba and OCZ Storage Solutions is a very different organization as a subsidiary of Toshiba. Toshiba has provided the ability to vastly enhance resources for product development as well as given us complete access to their premium NAND. We certainly will continue to strive to meet the high expectations of you, our valued customers. Thank you again for your input.
  • daerron - Tuesday, May 26, 2015 - link

    Nice in depth analysis Anandtech! Read the article as I'm receiving a new Vector 180 240GB drive this week as my original Vector bricked itself earlier this month after around 2 years of service. I have to say that I'm really impressed with OCZ's customer service as I couriered the drive last week and will be receiving a brand new and latest SSD in return this week. Fortunately I had my data backed up as it really just died without any warning. Based on the analysis I was also thinking this would be a killer laptop drive, till I saw the lack of slumber support which is a bit of a disappointment and opportunity missed. Still the PFM+ and low power usage is also most welcome in my workstation PC. We have regular power cuts in my country so its great to have that extra peace of mind.
  • bogdan_kr - Thursday, December 17, 2015 - link

    Hello guys. I would like to ask how exactly this Storage Bench - Light is designed. The description says it is designed to be an accurate illustration of basic usage with Total IO Operations 832,339, Total GB Read 17.97 and Total GB Written 23.25.
    With its 23 GB of writes it should account for roughly two or three days of average usage (i.e. 7-11GB per day).

    How long (typically) does it take to finish this bench?
    Is it designed to last for few hours (which would account for a typical daily use) or is it designed to finish as fast as possible, in few minutes perhaps?
  • bogdan_kr - Saturday, January 23, 2016 - link

    I am aware that most likely it is a rhetorical question but can anyone from AnandTech answer it, please? I just wanted to be sure about that benchmark.

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