AMD Ryzen 5000 Series with PBO 2 – Same Performance and Lower Temperatures? | Practical test!
Yes, the topic of CPUs is currently at the top of the menu again. Intel will soon be around the corner with the 12th generation of their CPUs and it is already hot when it comes to power consumption (or correct power consumption). It will certainly be exciting to see how Intel wants to see its CPUs presented with long bars on the front pages of this world. Igor will also take a very close look (well, I already know)! But today we’re looking at a topic about the current AMD Ryzen CPUs. With a 500 series motherboard, they can be undervolted by Precision Boost Overdrive 2. And meanwhile “Undervolting” is the new “Overclocking”! Although I was aware of the PBO 2 topic, I have never tested it to this day. Was that a mistake? We’ll see…
Ultimately, a comment from the community on the last article “Water games with Alphacool”, see here, brought me to today’s topic. So greetings to the community, thanks for your feedback – especially the guest “quantaro”! First of all, I will briefly introduce you to the structure of my tests, then we will look at the evaluations and we will conclude with a brief conclusion!
My test system:
| CPU | Ryzen 7 5800X (diverse PBO 2 settings) |
| Mainboard | MSI MAG X570 ACE |
| RAM | 4×8 GB Crucial Ballistix RGB 3200 MHz CL16-18-18-36 |
| SSD 1 | Toshiba Transcend 110S 256 GB (System) |
| SSD 2 | Crucial P2 1000 GB (Spiele) |
| SSD 3 | Crucial P2 1000 GB (Spiele) |
| SSD 4 | Samsung 512 GB 840 Pro (Backup) |
| CPU cooler | Aphpacool Eisbaear Aurora 360 |
| power adapter | Seasonic Prime Platinum 1300 Watt |
| GPUs | NVIDIA GeForce RTX 3080 FE – water-cooled ice block GPX Aurora (GeForce Driver 496.13) |
| Sound | SoundblasterX AE-5 Plus |
| keyboard | Cooler Master SK 622 (Red Taster) via USB @1000 Hz Polling Rate |
| mouse | ASUS ROG Chakram Core @1000 Hz Polling Rate (NVIDIA Reflex Latency Analyzer Support) |
| Monitor 1 | ASUS ROG Swift PG279QM @240 Hz via DP (Nvidia G-SYNC mit Reflex Latency Analyzer) |
| Monitor 2 | LG 27GL850-B @144 Hz via DP (AMD FreeSync Premium, G-SYNC Kompatibel) |
A few words in advance: The article is only intended to provide general attention to the topic of PBO and in particular “Undervolting”. Today I cannot give you a detailed look down to the smallest iota. I don’t have enough time for that at the moment! There are other projects and articles on the “to do list”. But I am sure that we will see the crux of the matter outlined!
- 1 – Introduction and test system
- 2 – The various BIOS settings
- 3 – Cinebench R23 und PBO 2
- 4 – 3DMark Time Spy with PBO 2
- 5 – Summary and Conclusion
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