Its not a matter of “right or wrong” its a matter of understanding what the metric even means. People think power draw is TDP but it isnt and AMD, Intel, and Cooling manufacturers say it isnt as they have an entirely separate set of metrics for that purpose generally falling under the EDP or Electrical Design Power (AMD and Intel have their names for it) umbrella.
You really cant complain power draw doesnt match TDP as it was never meant to. Its fine to complain about the power draw, but TDP shouldnt even be in that discussion as its explicitly for thermals.
Based on my experience with zen3, the problem with AMD power usage starts when you enable PBO.
If you don’t enable it, you will get something like 80W maximum usage in a 65W CPU.
At least this is what I observed, correct me if I’m wrong about this statement.
I’m sure my 5800X is going to be a power hog. Was going to get the 5700X at the time but they were sold out so the 5800X was a good buy at the time. Now it’s running just above what i paid at the time. Now the 5700X has dropped about $50 less and of course the 7000 series are quite expensive in comparison.
5800x is a good CPU, what is strange about it is that it is tagged as a 105W TDP CPU, while the 5700x is tagged as a 65W CPU.
The performance between them is so little that this TDP difference can’t be explained, at least this is my point of view about it.
But if I had a 5800x, I would be happy with it nonetheless. It is a great CPU for everything, gaming, work, streaming, you choose it.
And you can always tune it to consume less power in case you want.
Hm, that is good, you will get some security issues fixed with that AGESA 1.2.0.8
In my case, it fixed some USB problems too, but that is not included in the release notes.
Yes my 3800X is great and is also 105W so i don’t think I’ll be disappointed. The 3800X came with the AMD prism cooler but the 5800X doesn’t so i went with a higher end air cooler with dual fan which i posted above. I do run my 3800X on eco mode which has 65 watt or 45 watt.
I tried PBO a while ago and my FANs were crazy at that time, too much noise.
PBO gives you a little performance compared to the heat it creates, it is just not worth to enabled it as I see it.
Now, what I do is to undervolt the CPU for 30mV, all cores, then test the stability.
I used this tool to test each core: https://github.com/sp00n/corecycler
In case of a crash, you go and increase that core voltage to +2, like -28mV now, and test again.
By doing like this, you will eventually find the sweet spot for your silicon.
After you find the sweet spot, you can test by running a prime95 all core workload for 10 minutes, and if there isn’t a single crash, that is it.
You will have more performance, less power usage, less heat, less noise…
For me, downvolt is the way to go nowadays.
I’ve never done any undervolting. Not even sure where to set that. My motherboard settings have undervolt protection settings but they are quite large jumps. Not even sure what it does.
In the BIOS, you will see an option called, Curve Optimizer.
There you will have two options:
All core: Positive or Negative
Per core: Positive or Negative
To give it a fine tune, you choose Per core > Negative (Negative means that you will undervolt the CPU).
Then, you choose -30mV to all cores and start the stability test, but note that these tests can take a long time to finish since every crash you have in a core, you will have to go to BIOS and increase the voltage a little bit, then test again..
You keep doing that until the tests are crash free.
Most settings on here even under overclocking can’t be adjusted. There are only a few settings under digital power where you can make changes. It’s not the same as the Asus board has. I just look at your picture and i go check it again.
It might be PBO2. The board is MSI X570 gaming Plus.
Edit: No i don’t see that. Most of the settings are automatic. There are some settings like i say about Digital power. Nothing that looks like your image.
It may be because i don’t have the 1.2.0.8 AGESA on this board yet. I will watch the video and see if i can learn something. As soon as the new update UEFI is out i can update it. Or i could try the beta? Also this is Ryzen 3800X so it may not have the ability.
