Results 1 to 3 of 3

Thread: Odd HD performace drop spikes in HDTach when running under XP Pro x64 ?

  1. #1
    Senior Member
    Join Date
    Mar 2007
    2 times in 2 posts

    Odd HD performace drop spikes in HDTach when running under XP Pro x64 ?

    I am/was considering running XP Pro x64 as my main OS on my new PC, but was a bit dismayed when I installed XP Pro x64 SP2 and ran HDTach. While the average read performance was comparable to when running under XP Pro 32-bit (approx. 71MB/s with my superb Western Digital WD5000AAKS), I noticed that there were about 3 or 4 dropout troughs during the benchmark when running under x64.

    Does anyone know why this might be ?

    PS. When I have my new machine back up and running, I will post the HDTach results for the same WD5000AAKS drive when running under XP 32-bit and XP x64 so you can see what I mean.

  2. #2
    YUKIKAZE arthurleung's Avatar
    Join Date
    Feb 2005
    88 times in 83 posts
    • arthurleung's system
      • Motherboard:
      • Asus P5E (Rampage Formula 0902)
      • CPU:
      • Intel Core2Quad Q9550 3.6Ghz 1.2V
      • Memory:
      • A-Data DDR2-800 2x2GB CL4
      • Storage:
      • 4x1TB WD1000FYPS @ RAID5 3Ware 9500S-8 / 3x 1TB Samsung Ecogreen F2
      • Graphics card(s):
      • GeCube HD4870 512MB
      • PSU:
      • Corsair VX450
      • Case:
      • Antec P180
      • Operating System:
      • Windows Server 2008 Standard
      • Monitor(s):
      • Dell Ultrasharp 2709W + 2001FP
      • Internet:
      • Be*Unlimited 20Mbps
    If your windows happens to read/write from the drive when you're running HDTach, it will produce the troughs. It is fine as HDTach and any other speed test are just benchmarks not real-life performance. You'll never feel the "bump". If you do, I strongly suggest you switch to a Raptor 150G

    Also if you do a few more tests you'll probably see them happening in different parts of the disk.
    Workstation 1: Intel i7 950 @ 3.8Ghz / X58 / 12GB DDR3-1600 / HD4870 512MB / Antec P180
    Workstation 2: Intel C2Q Q9550 @ 3.6Ghz / X38 / 4GB DDR2-800 / 8400GS 512MB / Open Air
    Workstation 3: Intel Xeon X3350 @ 3.2Ghz / P35 / 4GB DDR2-800 / HD4770 512MB / Shuttle SP35P2
    HTPC: AMD Athlon X4 620 @ 2.6Ghz / 780G / 4GB DDR2-1000 / Antec Mini P180 White
    Mobile Workstation: Intel C2D T8300 @ 2.4Ghz / GM965 / 3GB DDR2-667 / DELL Inspiron 1525 / 6+6+9 Cell Battery

    Display (Monitor): DELL Ultrasharp 2709W + DELL Ultrasharp 2001FP
    Display (Projector): Epson TW-3500 1080p
    Speakers: Creative Megaworks THX550 5.1
    Headphones: Etymotic hf2 / Ultimate Ears 10 Pro

    Storage: 8x2TB Hitachi @ DELL PERC 6/i RAID6 / 13TB Non-RAID Across 12 HDDs
    Consoles: PS3 Slim 120GB / Xbox 360 Arcade 20GB / PS2

  3. #3
    Senior Member
    Join Date
    Mar 2007
    2 times in 2 posts
    But why do these drops happen on XP x64, but not on XP 32-bit ?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Games VS Vista Beta 2
    By directhex in forum Gaming
    Replies: 30
    Last Post: 07-03-2007, 11:35 AM
  2. XP Pro x64 vs XP Pro SP2
    By Vini in forum Software
    Replies: 9
    Last Post: 21-08-2006, 08:52 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts