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  1. #1
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    9900k CPU Frequency while gaming

    I have a stock 9900k with XMP I enabled and multi-core disabled. Using HWMonitor i've noticed that in some games under load all 8 of my cores are at 4700mhz while in other games not all 8 cores are pinned at 4700mhz. Basically some games have the cores fluctuating in frequency.

    For example, while playing Modern Warfare and Destiny 2 both games have all 8 cores pinned at 4700mhz for the entire time I'm playing. Doesn't matter if I'm in the menu or playing the moment the game is turned on all 8 cores are pinned at 4700mhz.

    I decided to check out a couple other games like Red Dead Redemption 2, DMC 5 and Resident Evil 2. I noticed right away that with these games the 8 cores were not always pinned at 4700mhz like Destiny and COD. I guess I was also expecting those games to have all 8 cores pinned at 4700mhz also.

    Is what I'm experiencing normal and nothing to worry about? Or should every game always have all cores at the same turbo frequency? I just want to make sure my 9900k is working as intended.

  2. #2
    ROG Guru: White Belt Array
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    Quote Originally Posted by 09subie View Post
    I have a stock 9900k with XMP I enabled and multi-core disabled. Using HWMonitor i've noticed that in some games under load all 8 of my cores are at 4700mhz while in other games not all 8 cores are pinned at 4700mhz. Basically some games have the cores fluctuating in frequency.

    For example, while playing Modern Warfare and Destiny 2 both games have all 8 cores pinned at 4700mhz for the entire time I'm playing. Doesn't matter if I'm in the menu or playing the moment the game is turned on all 8 cores are pinned at 4700mhz.

    I decided to check out a couple other games like Red Dead Redemption 2, DMC 5 and Resident Evil 2. I noticed right away that with these games the 8 cores were not always pinned at 4700mhz like Destiny and COD. I guess I was also expecting those games to have all 8 cores pinned at 4700mhz also.

    Is what I'm experiencing normal and nothing to worry about? Or should every game always have all cores at the same turbo frequency? I just want to make sure my 9900k is working as intended.
    Enable Sync All Cores, and then set a CPU multiplier. You can also disable Intel Turbo Boost Technology.

  3. #3
    ROG Guru: Blue Belt Array mdzcpa PC Specs
    mdzcpa PC Specs
    MotherboardMaximus Hero XI
    Processor9900k @ 5.1Ghz All Core 1.315v AVX -2
    Memory (part number)Gskill GTZ 4133 C17 32GB (4x8GB)
    Graphics Card #1ROG Strix 2080 TI OC
    Sound CardOn Board
    MonitorROG PG348Q
    Storage #1Samsung 970 Pro M.2 512GB for OS & APPS
    Storage #2Samsung 970 Pro M.2 1TB for GAMES
    CPU CoolerROG Ryujin 360
    CasePhanteks Evolv X
    Power SupplySeasonic Prime 1000W Titanium
    Keyboard Corsair K70 LUX RGB
    Mouse Corsair M65 RGB
    Headset Corsaur VOID Pro
    Mouse Pad Corsair MM300 Wide Desk Mat
    OS WIN 10 Pro
    Network RouterLinksys VELOP
    Accessory #1 ROG 751JY Laptop for Moobile Gaming
    Accessory #2 Koolance EXC-800 Chiller
    Accessory #3 25+ years of overclocking

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    Your CPU is working as normally. Different games have different load needs on the CPU. Nothing to worry about.

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