Ryzen 3950X - First-time question!
Ryzen 3950X - First-time question!
Based on what I've read so far, PBO is a straightforward method for boosting Ryzen processors. I'm still exploring enough details to decide if trying it out makes sense and if the benefits are worth it.
Precision Boost Overdrive offers a boost that considers power and heat limits. Manual adjustments rarely provide meaningful improvements unless you're always running on multiple cores, because these chips usually can't reach all-core speeds even with PBO for lower-thread tasks. For example, my 2700X reached 4.45Ghz on just 1-2 cores with PBO but only 4.2GHz when fully OC'd, which slowed performance in games. You can still adjust settings like usual on Intel systems, or some users simply increase amperage limits to let PBO perform better. RAM adjustments work similarly. Using standard PBO, tweaking limits, or manual tuning can either help or hurt depending on your workload and how much effort you're willing to put into stability. If you need guidance, someone familiar with Zen 2 would be best to walk you through these changes.
Thanks, gives me some more context at least to start reading more.
HandBrake supports multiple CPU cores efficiently, but performance gains slow after a certain point. - https://handbrake.fr/docs/en/1.0.0/techn...mance.html
Handbrakes adapts based on the environment. With many cores, it may not utilize all cores fully. I only share my experience with the 3900X. Using a 5820K consistently gives 100% performance. At 3900X, it usually stays around 60-70%. Higher settings can push it to about 90%. It seems software-related unless you upgrade to a better model like the 3950X, which can run at 4.3-4.4GHz without excessive voltage. For solid single-core speed, simply switch on a click in Ryzen Master. PBO works strangely with my 3900X, especially when power limits are increased—power usage rises and temps go up, though performance gains aren’t huge. With a 2950X I built for my brother-in-law, PBO adds roughly a 10% boost. So enabling PBO with Zen + makes sense if you have proper cooling. Zen 2 behaves differently.
It looks like PBO adjusts automatically based on your needs, but you might need to fine-tune other parameters for optimal performance. It’s not entirely hands-off—check settings like fan speeds or thermal thresholds to ensure smooth operation. Your CPU is performing well under typical conditions, with temperatures staying around 45-50°C during heavy loads. The fans you’re using should help maintain a stable idle around 35-40°C.
PBO appears to have limited impact on Zen 2. I’ll just use the default or manual OC settings. Unfortunately, my CPU is quite slow—needs 1.365V for 4.3GHz and runs at 80C+. With the default, it always boosts to 4.1GHz across all cores, which is already quite good for my needs. The temperature stays around 72°C during the AIDA64 stress test, usually under 70°C with Handbrake. Of course, every CPU behaves differently. Some high-end chips can hit 4.4GHz at 1.32V or less. If that’s the case, I’d save a manual OC profile in Ryzen Master so it can deliver strong multi-core performance. Just click the profile and apply. I built a PC with a 3600 MHz processor about a month ago for a friend; that unit ran at 4.4GHz with 1.325V.