OCZ Agility EX SSD 60GB review

Memory (DDR4/DDR5) and Storage (SSD/NVMe) 366 Page 7 of 11 Published by

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SSD Performance Atto Disk Benchmark

Atto Disk Benchmark

One of the finest tools available to measure storage performance is ATTO. I love it to death as it is so reliable and produces such accurate results. The great thing about ATTO is that we can test with predefined block sizes. So we can test with a 32MB sequence of 4KB files, yet also 32MB in 1MB files. This gives us an excellent scope of overall performance with small and large files.

ATTO Write performance

The most important and difficult task for any SSD is .. writing really small files fast, so let's start off there and have look at that with this WRITE test. We scale 4KB block sizes to 1024KB block sizes in bursts of 256MB with a queue depth of 4 and then measure how fast the storage device is dealing with them. The storage units we used:

  • Maxtor 6 Y200M0 200GB
  • WD1500HLFS VelociRaptor
  • OCZ Vertex Turbo 128GB (MLC)
  • Corsair P128 (MLC)
  • OCZ Agility EX (MLC)

We recently added the newest model Western Digital WD1500HLFS VelociRaptor to our test suite, it is the fastest and most expensive 10k RPM HDD your money can get you (Colored in Blue), It's write performance is unprecedented good. For a real average experience we dropped the Maxtor in there as well, this represents your average cheapo HDD, colored in yellow.

Then in green the OCZ vertex Turbo SSD colored in dark green the Corsair P128 SSD with Samsung controller and finally in red the bitching fast SLC based Agility EX.

** Mind you that we updated our ATTO test suite and as such the benchmarks have all been redone, and they can differ a little here and there compared to previous test results from older articles.

ATTO Read performance

The previous test was write performance, but let's have a peek at read performance.  All Indilinx controller based SSDs haul ass and definitely take a lead in this particular benchmark though.

The SSDs are overlapping making the results look rather unreadable, but that's roughly 260 MB/sec read performance you can't hear me complain, it puts the WD Velociraptor to an absolute shame really.

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