Read Performance

Our read performance investigations start out with small 512-byte files, then scale up to 32KB, 256KB, 2MB and 64MB file sizes.

512-byte File Read Performance

At 512-bytes, the performance of all of these drives is in the sub-1MB/s range. The fact of the matter is that NAND flash based USB drives do not perform very well with small files:

512B File Read Performance

For the most part, all of the contenders perform very similarly here. Interestingly enough, Lexar jumps to the top of the list with their JumpDrive Lightning.

Honestly, you don't see any real performance differences here until you drop into the bottom 4 or 5 drives.

32KB File Read Performance

At 32KB, we get into the size range of very small pictures, medium sized documents and a number of other types of files that are all potentially well suited for these drives. Note that the performance of these drives improves significantly over the 512-byte file size results from above. While we expressed performance in hundreds of kilobytes per second before, now we're talking about megabytes and tens of megabytes per second:

32KB File Read Performance

Now, we start to see the pack thin out, as the clear performance leaders are reduced from over a dozen down to a few: Lexar's JumpDrive Lightning, Memina's Rocket, Kingston's DataTraveler Elite and OCZ's 2GB Rally drive.

Once we get lower than the Flash Voyager on the list, that's when we see performance drop into the single digit MB/s transfer rates.

Transcend Jetflash Read Performance (con't)
POST A COMMENT

39 Comments

View All Comments

  • BJL - Monday, October 16, 2006 - link

    Do the read and write speeds change for the 1gb and above models? Would I get the same performance, or should I stick with the 512mb? Reply
  • NeoZGeo - Monday, October 17, 2005 - link

    what kinf of benchmark are you guys using? How come some of those drive write speed is sooooo low!? Like Trenscent, OCZ Rally, i've seen some reviews out there which says other wise. Reply
  • NeoZGeo - Monday, October 17, 2005 - link

    here's the review by tom's

    if you look at the trenscend jet flash, it actually has the highest write speed average out at 23.3 mb/s vs anandtech's 8.7 mb/s !? what the hell?
    Reply
  • NeoZGeo - Monday, October 17, 2005 - link

    haha oops, forgot about the link :D

    http://www.tomshardware.com/storage/20050520/usb_f...">linky
    Reply
  • quanta - Wednesday, December 07, 2005 - link

    It looked like Tom's test is testing the write speed between USB host and flash drive's controller's memory buffer, instead of actual write speed, which can only be verify by doing a read after writing is completed. There are also reports that http://www.auphanonline.com/articles/view.php?arti...">cluster size may affect the write access behaviour. BTW, Tom's http://www.tomshardware.com/2005/08/10/two_fast_an...">later review has simultaneous reads and writes benchmark, which slows Memina Rocket to a halt. Reply
  • quanta - Wednesday, December 07, 2005 - link

    In addition, even when using buffered write in SiSoft Sandra, it is extremely unlikely that Transcend Jetflash 110 can write anywhere near 23.3MB/s. http://www.oc.com.tw/article/0510/readparticle.asp...">This benchmark shows that when doing random write with Kingston DataTraveler ELITE, write speed dropped more than a half compared to sequential write. Reply
  • gaintstar - Wednesday, November 15, 2017 - link

    More updating news about custom metal usb drives factory wholesale,advertising companies gifts, Flason Custom mini usb flash drives,Personalized plastic USB flash drives, custom twister usb flash drives, corporate brand building company gifts items,customized PU body memory sticks,promotional mobile phone usb 3.0 flash drives memory sticks,imprinted promotional products giveaways,custom plastic usb 2.0 drives,custom body usb storage flash drives suppliers....welcome to visit our website: www.flason.com, or send us your enquiry by email: sales@flason.com Reply
  • TrueWisdom - Wednesday, October 12, 2005 - link

    I'm the in-house support for a university building and I've had absolutely horrible luck with Lexar drives. Lexar often fails to detect entirely on somewhat older machines (the Latitude C840, for example) and has also displayed a relatively high failure rate for me. I don't have any positive or negative impressions of Kingston drives, so I can't say anything there, but I will say that I've had by far the best luck with Sandisk drives. I've never had one fail on me, and I've seen them go through wash cycles, get run over by a car, and get left out in the rain. Compatibility has been universal as well. They may not be the fastest drives but they really are the only ones I've ever trusted. Reply
  • gaintstar - Wednesday, November 15, 2017 - link

    More updating news about custom <a href="http://www.flason.com/Metal-USB-Flash-Drive.html&q... target="_blank">metal usb drives</a> factory wholesale,advertising companies gifts, Flason <a href="http://www.flason.com/Custom-PVC-USB-Drives.html&q... target="_blank">Custom mini usb flash drives</a>,Personalized <a href="http://www.flason.com/Plastic-USB-Flash-Drive.html... target="_blank"><a href=http://www.flason.com/Plastic-USB-Flash-Drive.html target='_blank'>plastic USB flash drive</a>s</a>, custom twister usb flash drives, <a href="http://www.flason.com/Branded-USB-Flash-Drive.html... target="_blank">corporate brand building</a> company gifts items,customized PU body memory sticks,promotional <a href="http://www.flason.com/Mobile-Phone-USB-Drive.html&... target="_blank">mobile phone usb 3.0 flash drives</a> memory sticks,imprinted promotional products giveaways,custom plastic usb 2.0 drives,custom body usb storage flash drives suppliers....welcome to visit our website Reply
  • pendrivethis - Friday, October 07, 2005 - link

    i work for a flash memory controller maker and in all honesty the most meaningful performance test is random write. and no one really advertise that since sequential read speeds seem much more appealing and marketable. i can get a dual-channel & interleaving enabled usb 2.0 pen drive with micron or samsung nand-type flash to go up to 34mB/s in sequential read, but the engineer who designed this still tells me that he'd rather use and-type flash from renesas (formerly hitachi) since and flash has a better random write than nand flash.

    and knowing what i know, if you use your pen drive very often, and i suspect some of you may be in that boat, i'd check out some of the burn-in testing results especially since companies are not entirely using only samsung nand flash. certain new flash whether nand-type or ag-and-type and even some high-density samsung flash seem to be displaying a need for extra care in ecc. data-verify errors are fatal, especially if it's the only copy you got...

    anand, perhaps a little visit to some of the design houses for these controllers the next time when you're in taiwan is in order. computex is only 9 months away.
    Reply

Log in

Don't have an account? Sign up now