OCZ Agility 4 256GB SSD Review – Workhorse Performance and Top Value


The Agility 4 is available in capacities of 64, 128, 256 and 512GB and is a 6Gbps SSD which is fully 3Gbps (SATA 2.0) compatible and has a three year warranty.  Depending on the capacity chosen, performance specifications varies and our 256GB sample lists performance of 420MB/s read and 410MB/s write with random 4k read IOPS of 48,000 and 85,000 write IOPS.  OCZ boasts of Ndurance 2.0 Technology which is proprietary to Indilinx and will enhance the memory’s lifespan through increased SSD durability and reliability.  This SSD has a three year limited warranty.


A quick check of Amazon.com shows availability and pricing at $68.99 (64GB), 94.99 (128GB), $179.99 (256GB) and $369.99 which is a low of seventy cents per gigabyte for the 256GB version.  In contrast, the 256GB Vertex 4 with premium memory can be found $30 more for $209.99.

Exterior packaging for the Agility 4 consists of a one piece plastic case that simply clicks together at the top.  Unlike the Vertex 4, the Agility 4 does not include the 2.5″ to 3.5″ desktop adapter and this might need to be considered in the end price should the common practice of using tape not suffice.


The exterior casing of the Agility 4 consists of an aluminum shell which is securedby four screws with a brushed metal base.

Once disassembled we get a look at the PCB with the Indilinx Everest 2 IDX400M00-BC controller, two Hynix DDR3 256MB DRAM cache modules and 16 pieces of Micron 25nm Asynchronous multi-level cell (mlc) NAND flash memory.

Each module of memory has a capacity of 16GB for a total SSD RAW size of 256GB.  s with all similar SSDs, the total available capacity after formatting is slightly lower at 238GB.


  1. i just installed the Agility4 in my early 2010 Macbook Pro 13inch which is only SATA II but the difference is magic. I only use for normal word and spreadsheet, some video and picture editing, i also run a virtual machine [VM Ware] with windows, but so far its just been great. I would def recommend this SSD.

    But then again, its my first SSD….

  2. Thanks Les. I just ordered the 512 version of this model for $323 from Amazon.com for my old early 2008 Harpertown 3.2GHz 32GB Mountain Lion OS X 10.8 Mac Pro. The goal is simply to be able to edit tags and crush dance music in iTunes which is an incredible dog of a tag editor. Hope this model SSD will make all the waiting a thing of the past. I’m canceling my $337 order for a “used like new” 480GB Sandisk SSD. Did I do the right thing Les?

  3. Les, I can’t tell the difference between a $323 512 Agility 4 and a $550 512 Vertex 4. Their overview pages on the OCZ Tech website look identical except for the additional charts and video on the Vertex overview page. Could you give us the executive summary on the $227 difference between the same size two models please? Do you really get $227 worth of better performance – especially on SATA II computers?

    • The different is that the Vertex 4 use synchronous NAND and the Agility 4 use asynchronous NAND. theoretically the Vertex 4 should be better. but the difference wouldn’t be worth $227, especially on a SATA 2 computer IMHO

  4. Hey Les can you give me some advice on this SSD vs. Samsung 830? they can be found for around the same price on NewEgg. the Agility seems to be faster but the Samsung more reliable (OCZ SSDs have had quite a lot of error in the past). what do you think? also since I’m a computer musician so which one of these 2 drives will offer me better performance with incompressible files? thank you!

  5. I am about to RMA my SECOND Vertex 2 120GB SATA II SSD… LOTS of wasted time re-creating my environment! What is the more recent “reliability” experience with OCZ drives? I do LOTS of video (screencapture) production (professor)

  6. Hello

    I have a MacPro 2006, which I Carbon Copied my OS from a Corsair 128Gb to an OCZ Agility 4 256GB. I have freeze up after sleep, and everything seems to lag or be slow to perform when using the OCZ Agility 4, but not the Corsair.

    Would a clean install be advisable? Any other suggestions welcome.


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