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i7 5960x @ 4.4GHz vs i7 6700K @ 4.0 GHz vs i7 6700K @ 4.4 GHz Passmark Frustrations

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  • i7 5960x @ 4.4GHz vs i7 6700K @ 4.0 GHz vs i7 6700K @ 4.4 GHz Passmark Frustrations

    Hi David,

    I am in the process of rebuilding a box I built about 2 years ago around an i7 5960X that I never used because of the ambient temperature in the room in which I needed to use it. Here is the current configuration:

    i7 5960x
    ASUS Rampage V Extreme motherboard
    EVGA GTX-1080 Ti video card (Founders Edition)
    64GB G,Skill DDR4-2800 RAM
    1TB Samsung EVO 849 500GB PCIe SSD (I've got a Samsung PRO 850 1TB M.2 NVMe card in it, but the OS is still on the EVO, until I put Win 10 Pro on it UEFI)
    Win 7 Pro
    Overclock to 4.399 GHz just by increasing the individual core multipliers to 44. Everything else set to AUTO. (CPUz shows 4.399 GHz with Burnintest at 100%)

    On paper, this computer should be a screamer but the PassMark score is only 4287.5

    What I found particularly perplexing was comparing this to the Passmark score of a Shuttle XPC running an i7 6700K at the non-overclockable turbo rate of 4.0GHz, Intel CPU graphics and 16GB G.Skill DDR4-2400 RAM and a Samsung EVO-840 500GB SSD, which was 4079. Also, comparing it to a i7 6700K computer I built that's running at 4.4GHz. ASUS GTX-780 Ti graphics, 16GB G.Skill DDR4-2666 RAM and a Samsung EVO-840 500GB SSD, which actually beat the 8-core Passmark with a score of 4864. Both the 670-0K machines are running Win 7 Pro.

    Clearly, something is amiss here. GPUz confirms that both the GTX graphics cards are running optimally, and the Passmark combined GPU score for the 1080 Ti card is almost 30% greater that of the score for the machine in the comparison list that is running the 6-core processor and a GTX-980 (X99-UD4-CF). Also, the CPUmark combined Passmark score was about 40% higher than the comparison machine. Even the EVO disk beat the 6-core machine by over 24% in the comparison score. The 6-core machine only beat my 8-core in one category, 2D graphics, and it was only by a few percent. What I don't understand is why the combined Passmark Score for the X99-UD4-CF machine was over 700 points higher. Also, in your High-End processor graph, the (I presume stock) i7 5960x processor hasd a Passmark score of over 11,000.

    Any thoughts?

    John

  • #2
    If you could post the individual test results it would be good (or even better the baseline number). Also make sure all the results you are looking at are all from V9. (and not version 8 )

    See also this post
    Causes and Solutions for a slow PC

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