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  • S_x96x_S

    addikt

    Pugetsystems döntött ..
    és a jövőben PBO és CPB nélkül fogja tesztelni a ZEN4-eseket ..
    ( és hasonló módon az Intel 12gen és 13gen-t is limitálják .. )
    Szerintük nem éri meg a tartalmogyártóknak ..
    ( és ebben én egyet is értek velük )

    "
    Is Precision Boost Overdrive and Core Performance Boost Worth it for Content Creation?

    In most of the workloads we tested, it is very clear that using Precision Boost Overdrive (PBO) and Core Performance Boost (CPB) is not worth it. Photoshop, Lightroom Classic, Premiere Pro, After Effects, and DaVinci Resolve all showed no difference in performance when we disabled these settings from their "Auto" default, yet the CPU temperature dropped as much as 30C, or even 40C!

    It was only the extremely heavy workloads where the CPU is loaded to 100% for sustained periods of time that PBO/CPB gave any amount of performance increase. Even then, however, the performance gain was only about 10% at most, and in exchange, the CPU was often pegged at 95C, versus just 65C with PBO/CPB off. Running the CPU for sustained loads at 95C doesn't seem like a terribly great return for a meager 10% performance boost in our opinion.

    What this means is that, going forward, we will be doing the majority of our AMD Ryzen 7000 testing with PBO and CPB disabled. As a workstation manufacturer, reliability is extremely important, and the vastly higher CPU temperatures are simply not worth it for the small performance gains in a limited number of workflows. By no means does this mean we think everyone should turn off these overclocking settings, simply that they don't align with our testing goals, which is to test hardware with an eye towards how they will perform in a workstation setting.
    One last thing we want to clarify is that this kind of auto-overclocking is not exclusive to AMD platforms. We deal with it on Intel platforms as well, in the form of MultiCore Enhancement (MCE) and unlocked short/long power limits. We are currently disabling MCE and setting the power limits on all our Intel Core 12th Gen systems and testing, and plan on doing a similar article to this one when the 13th Gen CPUs launch later this month."

    October 3, 2022:
    https://www.pugetsystems.com/labs/articles/AMD-Ryzen-7950X-Impact-of-Precision-Boost-Overdrive-PBO-on-Thermals-and-Content-Creation-Performance-2373/

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