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  1. #41
    ROG Guru: Orange Belt Array Braegnok PC Specs
    Braegnok PC Specs
    MotherboardAsus Crosshair X670E Gene
    ProcessorAMD Ryzen 9 7950X
    Memory (part number)CMT32GX5M2B6000Z30K
    Graphics Card #1EVGA RTX 3090 Ti FTW3 Ultra
    MonitorAlienware AW3423DW
    Storage #1Samsung 990 Pro
    CPU CoolerOptimus AM5 Foundation
    CaseAsus Prime AP201
    Power SupplySeaSonic Prime TX-1600
    Keyboard Das Keyboard 4 Ultimate
    Mouse G502 Lightspeed
    Headset SteelSeries Arctis Pro
    OS Windows 11 Pro
    Braegnok's Avatar
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    Nov 2019
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    Quote Originally Posted by F1Aussie View Post
    Is this just an issue on the 7950x or all zen 4? I did some basic benchmarks before moving from bios 0514 to 0705 on my 7700x and I picked up a few points in cpu-z on both single and multi core scores. I then moved to nm 0805 and had the same / similar performance as 0705. Ousting is still the same at around 5.5ghz.
    The real-world performance impact of the C-state Boost Limiter is minimal. That is because you need a good CPU capable of boosting over 5.5 GHz with many active cores. Furthermore, most workloads will trigger other Precision Boost limiters that restrict the operating frequency.

    The Ryzen 9 7950X has a programed maximum boost frequency ceiling of 5.85 GHz,..

    The C-State boost limiter is not present on the Gene motherboard launch BIOS 0609, 0611,.. both have AGESA 1.0.0.2.

    Attachment 96320

    Like you I have also tested the newer BIOS with the AGESA 1.0.0.3A ,.. on my system overall the performance is better in multi-thread. It's the lower thread count loads that saw a small regression, perhaps results that people running single threaded performance benchmarks might see.

    Personally for daily usage your fine running current version 0805 BIOS, do not worry about the impact of C-State Boost Limiter for daily usage.
    Last edited by Braegnok; 11-17-2022 at 11:17 PM.

  2. #42
    ROG Guru: Yellow Belt Array Soupladel PC Specs
    Soupladel PC Specs
    Laptop (Model)Asus Stric G15 G512LV
    MotherboardAsos Crosshair X670E
    ProcessorAMD Ryzen 7950x
    Memory (part number)Corsair Dominator Platinum 6000 DDR5 2x16Gb (CMT32GX5M2X6000C36)
    Graphics Card #1Asus TUF 4090 OC
    MonitorAsus TUF VG27AQ1A
    Storage #1WD SN850X 2Tb
    CPU CoolerCorsair H170i Elite Cappelix
    CasePhanteks P600S
    Power SupplyCorsair HX1000
    Keyboard Razer Blackwidow Elite
    Mouse Razer Basilsk V2
    Headset Astro A50
    Mouse Pad Asus ROG Balteus
    OS Windows 10
    Network RouterAsus ROG AX1100

    Join Date
    Jul 2020
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    Quote Originally Posted by Braegnok View Post
    The real-world performance impact of the C-state Boost Limiter is minimal. That is because you need a good CPU capable of boosting over 5.5 GHz with many active cores. Furthermore, most workloads will trigger other Precision Boost limiters that restrict the operating frequency.

    The Ryzen 9 7950X has a programed maximum boost frequency ceiling of 5.85 GHz,..

    The C-State boost limiter is not present on the Gene motherboard launch BIOS 0609, 0611,.. both have AGESA 1.0.0.2.

    Attachment 96320
    My 7950x was boosting to 5.75/5.8 on the BIOS versions that were on AGESA 1.0.02 and earlier, i.e 0614 BIOS and earlier

    Currently i am running rock solid with a -30 on all cores in curve optimiser so i am reasonably sure my CPU is capable of more than its able to do because of the limiter

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