Summary and conclusion
Today we took a look at 5 different BIOS settings related to Precision Boost Overdrive for the Zen3 generation AMD Ryzen processors. In the first three tests, the temperatures and power consumption in Cinebench R23 are pretty much identical, which can also be seen in the scores. However, you can clearly see, as soon as you give it a hand yourself, that the AMD Ryzen 7 5800X also produces less waste heat with less power consumption.
Yes, you don’t have to be a master of the obvious to do that, because that’s physics! The interesting thing is that you actually hardly lose any power. What I observed that the boost clock in the first 3 settings under load (all core) in Cinebench R23 was just over 4.7 GHz. In test 4 it was at max. 4.65 GHz and in the last test with “power limits manually low” at max. 4.55 – 4.6 GHz. This is also the reason for the small differences in terms of points that were distributed in the benchmarks. The temperatures and power consumption speak for themselves, everyone could see that!
For my part, I draw a positive balance here and will maintain the setting according to test 4 in the future. This gives me the same performance and a few degrees less on the CPU. I think that should also be enough for today in a nutshell. It wasn’t my goal to push it to the limit, but to show that you can do something and lose nothing in the end. Everyone can now experiment with their settings to see what fits best.
Thanks to the community, you always know a lot yourself and do and do, but you just can’t and don’t know everything! In this sense, many thanks and I look forward to your feedback! To answer my initial question, yes it was a mistake not to deal with the issue of PBO 2! See you later in the forum…
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