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My Intel Core i9-7940X is performing way below the average PassMark scores, help?

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  • My Intel Core i9-7940X is performing way below the average PassMark scores, help?

    Hi, newbie here.

    So I have just built my PC and here is the list of the specs:

    PassMark Score: 6,828 - 99th Percentile

    Intel Core-i9 7940X @3.10 GHz (Maximum Multiplier @ x43.0)
    ASRock X299 Gaming K6
    G.Skill Sniper X F4-3600C19D-16GSXWB 16GB x 2 = 32GB
    Zotac GTX 1080 Ti AMP Extreme Core 11GB
    Samsung M.2. SSD 960 Evo 500GB - Main HDD for Windows 10 Pro
    Seagate Enterprise ST4000NM0035-1V4107 @4TB 7,200 rpm - Secondary HDD
    Corsair HX Series 850W Full Modular - Platinum (Power Supplies)
    Corsair Hydro Series H150i Pro Water Cooler
    Cooler Master H500P Casing

    When I did the PassMark test, the components are performing reasonably well except for the CPU. Here are the detailed scores:

    CPU Mark: 22,260 (Model Average: 26,170; Model Minimum: 18,907; Model Maximum: 32,470) - 99th Percentile
    Integer Math: 64,632
    Floating Point Math: 24,604
    Prime Numbers: 62
    Extended Instructions (SSE): 1,725
    Compression: 51,273
    Encryption: 8,649
    Physics: 783
    Sorting: 30,335
    CPU Single Thread: 2,438

    Memory Mark:2,616 - 87th Percentile
    Database Operations: 97
    Memory Read Cached: 28,638
    Memory Read Uncached: 12,834
    Memory Write: 11,410
    Available RAM: 28,123
    Memory Latency: 34
    Memory Threaded: 30,294

    Disk Mark: 16,893 - 99th Percentile
    Disk Sequential Read: 2,554
    Disk Sequential Write: 1,482
    Disk Random Seek + RW: 634
    CD/DVD Read: N/A

    3D Graphics Mark: 15,256 - 99th Percentile
    DirectX 9: 214
    DirectX 10: 348
    DirectX 11: 358
    DirectX 12: 65
    GPU Compute: 10,131

    When I openedIntel(R) Extreme Tuning Utility, the Processor Core Ratio and Processor Cache Ration were still at the default multiplier (38x and 24x respectively). As much as I should be grateful to have all these specs, I have to admit that my CPU looks like operating underclocked at almost 4,000 points below the same CPU Model PassMark score.

    Can someone help me on how to get my CPU score operating at least around the average PassMark score (@26,000-ish)?

    Thank you so much for your kind help and comments!

  • #2
    Your CPU did slightly sub-par on the CPU tests where a lot of RAM is used (e.g Prime numbers and Physics)

    I think the i9 7940X has 4 memory channels, but you have only 2 sticks of RAM.
    4 x 8GB should be (slightly) better than 2 x 16 GB.

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    • #3
      Hi David,

      Thank you for your input. I plan to use the PC for a lot of big data analyses, some of which (in my own personal experience) require more than 32GB of RAM to run the dataset (that is why I put 2x16 instead to allow me to put more RAMs in the future). I do hope the score will improve if I put 2 more RAM sticks in a couple of months. Thanks!

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