Sequential Read/Write Speed

To measure sequential performance we ran a 3 minute long 128KB sequential test over the entire span of the drive at a queue depth of 1. The results reported are in average MB/s over the entire test length.

Iometer - 128KB Sequential Read

This is one area where the Indiilinx controller doesn't look aged, sequential read performance turns in the best figures we've seen to date.


Iometer - 128KB Sequential Write

Back to normaility on sequential writes; certainly not one of the Barefoot's strong points.


Final Words

The ADATA N004 series ceratainly stands alone from a connectivity standpoint. Whether or not that's enough to sway the purchasing decision of anyone in the market for fast external storage though, largely hinges upon how vendors like Kingston decide to price external drives based upon the Toshiba T6UG1XBG controller. Over USB, Toshiba's controller is far more adept at sustaining performance under real world usage scenarios than the Indilinx Barefoot. It takes several hours for the Barefoot to return to optimal performance after stress while Toshiba's controller regains composure within an hour. So if you're looking for a drive that can handle the rigors of daily use while maintaining a decent level of overall throughput, we'd probably wait on pricing from Kingston before commiting to buy.

The combination of a more attractive price than OCZ's Enyo together with SATA connectivity does however give ADATA a small window of opportunity to captialize on a niche market-space in the meantime. Granted, we can't see many users out there that will be moving the N004 around between ports in such a manner, unless involved in some form of system setup/maintenance where there's a need for making quick drive images and such. If that sounds like you, the N004 isn't a bad option at the present moment if you can accept the limitations of the Indilinx Barefoot controller.

SATA Performance - Random Read and Write


View All Comments

  • SteelCity1981 - Monday, November 29, 2010 - link

    You'd think that paying that much for a 128gb SSD portable USB 3.0 hard drive would at the very least include frimware updates. I mean, this isn't some random 45 dollar HDD 120gb Portable USB 2.0 hard drive we are talking about here. Reply
  • StormyParis - Monday, November 29, 2010 - link

    thoughput and latency are fine and all, but in my experience USB is mainly about very sucky CPU usage.

    a test on that front, with various chipsets, would be faaaaaabulous.
  • jaydee - Monday, November 29, 2010 - link

    I'd be interested in seeing some numbers using eSata via an external enclosure. Reply
  • StormyParis - Monday, November 29, 2010 - link

    any SSD can do that, and the results will be the same as an internal one. Reply
  • Qapa - Monday, November 29, 2010 - link

    1 - Probably the most important one: when are we going to see the promised price cuts due to the move to lower nm? It was supposed to be this quarter right...?

    2 - When is the Jet Stream now supposed to come out?

    3 - I read somewhere that Intel G3 was put on hold due to the presentation of SandForce 2000 series?

    4 - When is this SandForce 2000 series expected to come out?

    I want a new generation SSD with 64Gb @ around $64!! (yes, this one is not really a question.. :P)
  • mpx - Tuesday, November 30, 2010 - link

    It would be interesting to find out how well such USB 3 SSDs perform as ReadyBoost caches. Or caches with other products - NVELO Dataplex, eBoostr. Reply

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