The single-threaded Cinebench tests are, I think, rather silly, as no one is going to render professionally using this program (or anything like it) in single-thread mode. Sometimes, people split hairs over a mere 50Mhz difference in max boost clocks. It's fun to tinker with, but the differences are 200-300MHz, max, over what the CPU will do boosting or overclocked on all cores. There are multiple ways to overclock your AMD CPU: you can enable AMD's Precision Boost Overdrive 2 hop into the the Ryzen Master Utility, or the latest Radeon drivers or head to the. Yes, the Zen 2 max boost is there but only in lightly threaded workloads, and very briefly, too. From what I've read the main difference between Zen2 PBO and Zen3 PBO is not just a bit higher max-single-thread boost clocks (which are lost if you manually overclock all the cores as boost is disabled) but 5000-series PBOs are also supposed to deliver the higher boost in a more sustained manner-at least "sustained" in comparison with Zen2 PBO boost clocks, that is. I'm running PBO on my 3900X with the latest 1.1.0.0 AGESA-well, been running it for the last 12 months at least (x570 Aorus Master)-and I routinely get 4.65GHz max single-core boost-air-cooled, stock fan, stock clocks, on 3-5 cores (according to HWinfo). But given the relatively risk-free performance gains we've seen with PBO, and the fact that the automatic nature of the feature avoids using excessively dangerous amounts of voltage, we think PBO2 overclocking will continue to be the safest path to wringing out the best performance possible. As with all overclocking, and AMD's policy with the first-gen PBO, the new PBO2 invalidates your warranty. That's impressive given that AMD's Zen 3 processors have already soared to the top of the single-threaded performance CPU Benchmarks Hierarchy.įor example, PBO2 grants the Ryzen 7 5800X nearly the same exceptional single-threaded performance of the beastly Ryzen 9 5900X. Still, AMD's impressive demo benchmarks show PBO2 basically enabling users to step up a tier over their existing processor in single-threaded performance. We have plenty of testing that shows the benefits of PBO in our recent Ryzen 9 5950X and 5900X reviews, not to mention the Ryzen 5 5600X review. The new PBO2 only works with Ryzen 5000 series processors, and AMD is also bringing in a new sophisticated undervolting technique to Ryzen 5000 processors for the undervolters among us.
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