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Prime Numbers benchmark gives low result on AMD 4600+ O/C

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  • Prime Numbers benchmark gives low result on AMD 4600+ O/C

    My rig:
    ASUS M2NPV-VM AMDx2 4600+ (65W) OCed to 2.6Ghz
    XP PRO-S2
    4 GB Corsair 4-4-4-12
    WD 320GB SATA HD
    BFG Nvidia GEFORCE 8600 GT OC 256MB DDR3

    Running at 1280x1024 32 bit color

    Integer Math: 173.0
    FLOP Math: 940.0
    SSE/3DNow!: 5611.00
    Compression: 8645.0
    Encryption: 44.0
    Image Rotation: 1470.0
    String Sorting: 3917.0
    Find Prime Numbers: 38.0 ?????????

    All these scores are comparable or way above average for a similar setup..except Prime Numbers! S/B at least 300.0.

    Any ideas? Anyone....Bueller.......Bueller?????

    Thanks in advance.
    Last edited by moodeblooz; Aug-05-2007, 06:49 PM.

  • #2
    Yes, 38 is low for the Prime number test.
    The result should be around 240 before overclocking for this CPU.

    Did you try running the test a few times to repeat the result. Maybe some background task activated itself at just the wrong time, while the test was running?


    • #3
      RE: Prime numbers

      Yes, I have run it multiple times and always with the same results. HELP!!!!!!!!!


      • #4
        Are you using PerformanceTest V6.1?

        Can you try,

        1) Using Advanced Multiprocess test with just the Prime number option on for a 20sec run. You should get a result like,
        Primes Found: 189880, Largest Prime: 2599999

        2) Try adjusting the number of processes from the Edit / Preferences window to 4 or 8, to see if this makes a significant difference.

        3) Try repeating the test without the CPU over clocked. Maybe you have broken something, or the CPU overheats on this test and auto-throttles down.