I totally agree. I just turn off the feature last night. My CPU cooling fan was annoying me with the speed changing all the time even for a simple task like opening Chrome. I lost 10% in R15 but the temps are down from 75 to 55 when running the test.
If you turn off PBO you’ll be leaving a lot of performance on the table. If your issue is that your fans are ramping up unnecessarily you can simply tune your fan curve.
PBO is not the same as PB mind you. Precision Boost is just the standard boost the processor can do, Precision Boost Overdrive is the auto overclock feature, but it usually only adds 25-100mhz at any given moment at almost zero performance difference, but it will use much more power.
Pedro Nunes
3 years ago
As a R5 3600X owner and previous Phenom II X4 945.
The first moments that I got with my R5 3600X were insane, the speed difference was insane, and at the time I was slighty affraid that it wouldn’t got the turbo as high as specified by AMD.
Altough the more time I did spent with it, the more annoying it was, the power draw and noise coming from the stock fan was really pissing me off.
So I just end up disabling turbo anyway, and immediatily the noise from the stock fan just decreased a ton, not to mention the temperatures.
I do think that turbo boost is a nice thing but for the actual coolers of the 3000 series (dispite it isn’t dangerous since temperatures weren’t that bad), can’t really keep up and they get annoying as hell!
Since what I do is mostly some small video render and gaming with a mere GTX 1650 Super which is mostly not the bottleneck, reducing the turbo have little to no impact to me.
Altough on the future when I do upgrade my GPU with something more powerful and especially when games will be more CPU Bound (or some actual ones like AC Odyssey/Origins if you target 60FPS), I might fetch a new cooler and re-enable turbo boost.
For now, It’s a wiser decision for my use case to keep it off.
Yeah in order to shut up your system you will need to work with fan curves. I find them much more reactive with Ryzen. For instance, the processor will jump 10c just opening Chrome, and 1 second later it will drop down 10c. This naturally leads to fan fluctuations and it drove me mad. So basically what I did, was head into bios and tell it to simply ignore the increase in temp (until a certain point of course). Now my system is humming along nicely.
My 2600 for instance will idle at around 30c, jump to 41c when opening Chrome and jump back down instantly. So my curve will stay the same between 0c-45c, and will only go full rpm when at 70c. Which never happens. Naturally the numbers will be different depending on your cooler, but you shouldn’t have to deal with constant ramp ups and downs. It’ll drive you mad in the end 🙂 https://imgur.com/sUxHe4J
PB is nice to have when the work requires it, however the processor will still boost even when it’s not needed – Leading to wasted power.
I totally agree. I just turn off the feature last night. My CPU cooling fan was annoying me with the speed changing all the time even for a simple task like opening Chrome. I lost 10% in R15 but the temps are down from 75 to 55 when running the test.
If you turn off PBO you’ll be leaving a lot of performance on the table. If your issue is that your fans are ramping up unnecessarily you can simply tune your fan curve.
PBO is not the same as PB mind you. Precision Boost is just the standard boost the processor can do, Precision Boost Overdrive is the auto overclock feature, but it usually only adds 25-100mhz at any given moment at almost zero performance difference, but it will use much more power.
As a R5 3600X owner and previous Phenom II X4 945.
The first moments that I got with my R5 3600X were insane, the speed difference was insane, and at the time I was slighty affraid that it wouldn’t got the turbo as high as specified by AMD.
Altough the more time I did spent with it, the more annoying it was, the power draw and noise coming from the stock fan was really pissing me off.
So I just end up disabling turbo anyway, and immediatily the noise from the stock fan just decreased a ton, not to mention the temperatures.
I do think that turbo boost is a nice thing but for the actual coolers of the 3000 series (dispite it isn’t dangerous since temperatures weren’t that bad), can’t really keep up and they get annoying as hell!
Since what I do is mostly some small video render and gaming with a mere GTX 1650 Super which is mostly not the bottleneck, reducing the turbo have little to no impact to me.
Altough on the future when I do upgrade my GPU with something more powerful and especially when games will be more CPU Bound (or some actual ones like AC Odyssey/Origins if you target 60FPS), I might fetch a new cooler and re-enable turbo boost.
For now, It’s a wiser decision for my use case to keep it off.
Very nice article.
Cheers
Sounds like a wise approach. Enjoy your new CPU. 🙂
Yeah in order to shut up your system you will need to work with fan curves. I find them much more reactive with Ryzen. For instance, the processor will jump 10c just opening Chrome, and 1 second later it will drop down 10c. This naturally leads to fan fluctuations and it drove me mad. So basically what I did, was head into bios and tell it to simply ignore the increase in temp (until a certain point of course). Now my system is humming along nicely.
My 2600 for instance will idle at around 30c, jump to 41c when opening Chrome and jump back down instantly. So my curve will stay the same between 0c-45c, and will only go full rpm when at 70c. Which never happens. Naturally the numbers will be different depending on your cooler, but you shouldn’t have to deal with constant ramp ups and downs. It’ll drive you mad in the end 🙂 https://imgur.com/sUxHe4J