|
|
摸鱼间隙啃完了这篇，转发下conclusion
简单的说就是要么开c-states，要么用medium load boostit绕过，或者异步eclk，不然会有一定性能损失（7900x/7950x最高频率都能到5.7以上的），但是到真实场景后的损失不大。jpg
顺便文章也讲了具体PBO2的各种测试，我也翻到这个大佬其他的文章，也许对玩这代u很有帮助
https://skatterbencher.com/2022/ ... clocking-whats-new/ zen4超频新玩法整体介绍
https://skatterbencher.com/2022/ ... locked-to-5900-mhz/ 7900x上5.9
https://skatterbencher.com/2022/ ... locked-to-5950-mhz/ 7950x上5.95
https://skatterbencher.com/2022/ ... -state-boost-limit/ 楼上发了的AGESA 1003 re-introduces Precision Boost C-State Boost Limiter带来的影响分析
Conclusion
Okay, let us wrap this up. Here are the main takeaways from this blog post.
First, enabling C-states is preferred as it provides higher performance for both AGESA 1002 and 1003.
Second, AGESA 1003 re-introduces the Precision Boost C-State Boost Limiter, which was not present on the launch motherboards & BIOSes
Third, the C-State Boost Limiter prevents the CPU from boosting to over 5.5 GHz when more than four cores are active. As the Ryzen 9 7950X has a programmed maximum frequency ceiling of 5.85 GHz, it means potential performance loss.
Fourth, on motherboards with the option, simply enabling “Medium Load Boostit” works around the C-State Boost Limiter.
Fifth, on motherboards that do not have this option, asynchronous eclk provides the only viable overclocking strategy to increase the frequency beyond 5.5 GHz when more than four cores are active.
Sixth, 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.
|
|
楼主: nApoleon
310112100042806
发表于 2022-10-24 14:58
好不容易5.475/5.375DOS+PBO2 curve针对核心微调+限频率（可能是我觉得低负载全核都能看到5.6，锁5.5有点可惜拉太高了）暂时没有黑，然后全负载10分钟才会撞墙95了，然后相拥corecycler摸一下看看是不是没问题结果core0就报错lol，还得摸一段时间
