13 Replies Latest reply on Sep 26, 2016 5:40 PM by Intel Corporation

    Intel 750 : high read latency

    Latenic

      Hello,

       

      I am using a 400gb Intel 750 (pcie card) on a Z97 board.

      Using AS SSD, I find that the read latency is about 4 times higher than what I see from reviews (0.08ms vs 0.02ms). The write latency is ok. The 0.02ms seems in line with the specs of the drive, so it appears that my system is slow.

       

      PCH.png

       

      I tried moving to the CPU lanes to see if that was a factor. As expected, I got a nice boost in seq read, but no change in latency :

       

      CPU.png

       

      Example from the web (Google image search for "intel 750 asssd") :

       

      LL

       

       

      Any idea of what I should look for to obtain "normal" read latencies ? I tried disabling real-time protection in Windows Defender, but no change there.

       

      Platform :

      Windows 10 AU

      NVME driver 1.7

      Intel 4790k

      16 Gb RAM

      Maximus VII Hero (Z97)

      Intel 750 400Gb