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OCZ Vertex 4 Series

OCZ Vertex 4 Series
alaScore 94

1105 reviews

Feb, 2016

alaTest has collected and analyzed 1105 reviews of OCZ Vertex 4 Series. The average rating for this product is 4.5/5, compared to an average rating of 4.5/5 for other Solid-state drive for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Solid-state drive the OCZ Vertex 4 Series is awarded an overall alaScore™ of 94/100 = Excellent quality.

Review analysis

(Based on 1105 reviews)

Expert Reviews  

User Reviews  


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Showing 1 - 968 of 1027 Show Reviews: in English | in other languages (78)

Consumer review by: ( review summary for OCZ Vertex 4 Series


alaTest has collected and analyzed 58 user reviews of OCZ Vertex 4 Series from The average user rating for this product is 4.7/5, compared to an average user rating of 4.6/5 for other Solid-state drive on

97% of the reviews on give this product a positive rating.

This summary is based on the product: OCZ VTX4-25SAT3-256G 256GB Vertex 4 SATA III-6Gb/s 2.5 Inch Internal SSD

Feb, 2016

Consumer review by: ( review summary for OCZ Vertex 4 Series


alaTest has collected and analyzed 900 user reviews of OCZ Vertex 4 Series from The average user rating for this product is 4.5/5, compared to an average user rating of 4.5/5 for other Solid-state drive on

90% of the reviews on give this product a positive rating.

This summary is based on the product: OCZ Technology 256GB Vertex 4 Series SATA 6.0 GB/s 2.5-Inch Solid State Drive (SSD) With Industry's Highest 120K IOPS And 5-Year Warranty - VTX4-25SAT

Feb, 2016

Expert review by: Nathan Edwards (

OCZ Vertex 4 256GB Review


Never-before-seen write speeds; new controller

High maximum response time

OCZ has typically reserved its Vertex label for the highest-performing SSDs in a given generation—using synchronous NAND, for example, rather than the asynchronous NAND found in its less expensive Agility series. The 256GB Vertex 4 carries on that...

Sep, 2012

Expert review by: Kristian Vättö (

OCZ Vertex 4 Review (128GB), Firmware 1.4/1.5 Tested


The latest Vertex 4 firmware updates provide a noticeable boost in sequential write speed at 128GB and 256GB capacities, and the low queue depth sequential read performance issue has also been fixed. Our primary complaints from the initial review, at...

The AS-SSD sequential benchmark uses incompressible data for all of its transfers. The result is a pretty big reduction in sequential write speed on SandForce based controllers, while other drives continue to work at roughly the same speed as with...

Aug, 2012

Expert review by: (

OCZ Vertex 4 ( 256GB)


Other than that, from a consumer's point of view, the drive is very similar to other SATA 3-based standard internal drives and can be used anywhere this type of hard drive is used.

The SATA 3 (6Gbps) 2.5-inch OCZ Vertex 4 is fast and affordable and comes with a tray adapter so it can also fit in a 3.5-inch drive bay.

The OCZ Vertex 4 isn't thin enough to be used in an ultrabook.

The OCZ Vertex 4 is an excellent replacement drive for a standard-size laptop or desktop.

Apr, 2012

Expert review by: Matthew Murray (

OCZ Vertex 4 (512GB)


The 512GB Vertex 4 offers some of the strongest performance you'll find in OCZ's new line of SSDs, but not everyone will see all of it.

Competitive overall speeds. Includes five-year warranty.

Expensive. Somewhat inconsistent performance.

Apr, 2012


Expert review by: Matt Safford (

OCZ Vertex 4 (256GB)


To most consumers, OCZ Technology doesn't have the same name recognition that computing giants such as Samsung, Intel, and SanDisk do. But when it comes to solid-state drives (SSDs), the San Jose, Calif.-based company has experience aplenty. Founded in...

Fastest all-around consumer-grade drive we've tested to date ; Five-year warranty

No data-migration software bundled ; A bit pricier than other "performance-grade" drives

It's a bit pricier than other SSDs of its capacity we've tested in 2012, and its thickness will keep it out of many thin laptops, but the Vertex 4 blazed through our benchmark tests, making it a great option for power users.

Dec, 2012

Expert review by: brandon (

OCZ Vertex 4 256GB Solid State Drive


We've looked at many SSDs here, and they've mostly been implementations of the popular SandForce NAND controller. While this isn't a bad thing, as the performance offered by those drives have been good, it's good to see more competition in the growing...

Oct, 2012

Expert review by: Hugh Briggs (

OCZ Vertex 4 256 GB Solid State Hard Drive SSD Review


The Vertex 4 is a departure from OCZ's tried and true model of using third party controllers and firmware for its SSDs. Taking control of the firmware with the Vertex 4 gives OCZ the ability to tune the SSDs for speed and performance at lower queue...

It is worth mentioning that the OCZ Vertex 4 has been on the market since April of this year, so it is hardly a newcomer compared to some of the SSDs we have directly compared it to. Seeing that it has been selling for six months and still shows to be...

Oct, 2012

best in its class

Expert review by: Jonathan Kwan (

OCZ Vertex 4 256GB Solid State Drive


A while ago, there was a Hong Kong serial drama called "Links to Temptation". Frankly, it has one of the worst storylines I have ever seen. It begins with a barrister who travels to Macau with his family, and encounters a pole dancer of whom he falls...

Sep, 2012


Expert review by: (

OCZ Vertex 4 SSD Revisited: 128GB and New Firmware


OCZ Vertex 4 SSDs (256GB and 512GB) through the benchmark grinder to see what they could do and also told you everything you ever wanted to know about them in the process. Today, we're testing another brother in the family, the 128GB OCZ Vertex 4. When...

Excellent price and value ; 5-year warranty ; Much better sequential reads with firmware update

Weak write performance in some tests ; Larger-capacity V4s offer same value, better performance

To put it succinctly, the 128GB Vertex 4 delivered somewhat of a mixed bag of performance results. In some tests it bested the field, while in others it couldn't keep pace. Like the previous Vertex 4s, the 128GB version didn’t do very well in SANDRA, a...

Sep, 2012


Expert review by: Vedran Dakic (

OCZ Vertex 4 128GB review (firmware 1.5)


For years now, Vertex name is the one people talk about when talking about fast SSDs. OCZ has been on the forefront of SSD technology since the very beginning, and - so has Vertex as a "brand". Over the years, they've developed other very popular and...

We can actually draw several conclusions from this test. First and foremost, this drive is not only fast, but it's consistently fast, which is something that you can't say about many SSD's. Reads and writes are very comparable across the board, access...

Aug, 2012

Product Specifications


Backup Function: No
Hot Swap Function: No
Rackmount:Not Applicable


Ethernet: No
Fibre Channel: No
Firewire: No
Serial ATA: Yes
Ultra ATA: No
Wireless LAN: No

General Features

BUS-powered: No
Internal / External:Internal