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Is there something wromg with my 960 EVO??

Discussion in 'Storage Drives' started by yannis76, Aug 11, 2018.

  1. yannis76

    Hitman

    Joined: Aug 16, 2004

    Posts: 738

    I recently upgraded my boot drive from an 850 EVO 512GB to a 960 EVO 512GB and while I was expecting performance much higher at least in theory, I get the opposite results!! Is there something wrong in the setup of my 960 EVO?

    960 EVO

    Sequential Read (Q= 32,T= 1) : 3159.278 MB/s
    Sequential Write (Q= 32,T= 1) : 1775.488 MB/s
    Random Read 4KiB (Q= 8,T= 8) : 500.861 MB/s [ 122280.5 IOPS]
    Random Write 4KiB (Q= 8,T= 8) : 466.094 MB/s [ 113792.5 IOPS]
    Random Read 4KiB (Q= 32,T= 1) : 220.932 MB/s [ 53938.5 IOPS]
    Random Write 4KiB (Q= 32,T= 1) : 146.030 MB/s [ 35651.9 IOPS]
    Random Read 4KiB (Q= 1,T= 1) : 37.600 MB/s [ 9179.7 IOPS]
    Random Write 4KiB (Q= 1,T= 1) : 102.315 MB/s [ 24979.2 IOPS]

    850 EVO

    Sequential Read (Q= 32,T= 1) : 4572.378 MB/s
    Sequential Write (Q= 32,T= 1) : 4154.935 MB/s
    Random Read 4KiB (Q= 8,T= 8) : 573.442 MB/s [ 140000.5 IOPS]
    Random Write 4KiB (Q= 8,T= 8) : 518.410 MB/s [ 126564.9 IOPS]
    Random Read 4KiB (Q= 32,T= 1) : 284.903 MB/s [ 69556.4 IOPS]
    Random Write 4KiB (Q= 32,T= 1) : 194.709 MB/s [ 47536.4 IOPS]
    Random Read 4KiB (Q= 1,T= 1) : 284.585 MB/s [ 69478.8 IOPS]
    Random Write 4KiB (Q= 1,T= 1) : 199.564 MB/s [ 48721.7 IOPS]
     
  2. yannis76

    Hitman

    Joined: Aug 16, 2004

    Posts: 738

    Reran the tests after installing the Samsung driver, same results, 850 EVO is much faster than 960 EVO!!
     
  3. Tannen

    Associate

    Joined: Aug 8, 2018

    Posts: 31

    Location: Devon, UK

    This shouldn't be the case. I don't suppose you have a different M.2 slot you could test or any way of running different comparative tests?

    The other consideration could be that you simply have a faulty module there. A pain in the neck, but if you're concerned it's faulty then perhaps consider looking into claiming warranty.
     
  4. HoneyBadger

    Wise Guy

    Joined: Aug 2, 2016

    Posts: 2,136

    Location: Hoo, Kent

    The 960 results look accurate. To me, the 850 results are not. The 850 is simply not that fast. Did you have a RAM cache or RAID with the 850?
     
  5. ED209

    Soldato

    Joined: Nov 5, 2014

    Posts: 5,641

    Did you have raid mode enabled on the 850? You can enable this through the Samsung magician software which increases speeds
     
  6. yannis76

    Hitman

    Joined: Aug 16, 2004

    Posts: 738

    Hi,

    I have Rapid mode enabled in Samsung Magician for 850 if that makes any sense...

    Thx
    Yannis
     
  7. tamzzy

    Soldato

    Joined: May 26, 2012

    Posts: 6,758

    rapid mode uses ram. probably the tests are testing your ram rather than your 850 lol
    hence the insane sequential read/write numbers.
     
  8. matthab

    Mobster

    Joined: Apr 19, 2009

    Posts: 3,088

    Rapid mode uses a Ram Cache disable it and try again.