I'm considering getting a 9070 XT for my PC, but I'm a bit worried about its high power consumption. My power supply unit (PSU) is a Cooler Master Gold v2 750W, and I want to keep my electricity bill down since I use my PC for 9–10 hours a day. I've seen some videos where people managed to undervolt it to around 220W, and I'm interested in hearing real-world experiences about this. I'll primarily be using the setup for 1440p gaming and editing, and I'm fine as long as the frame rates stay above 70. Just for reference, the 9070 is priced at $706 (Sapphire) and the 9070 XT at $740 (Asrock Steel). Here are my current specs: Ryzen 5 7600, 32 GB RAM, Ant Esports Air 211 case, and a Cooler Master Hyper 212 Spectrum v3.
4 Answers
I’ve got a 750W Gold EVGA PSU running a similar setup and it’s been holding up fine so far. You should be good with the 750W; it won't stress it at all!
Not for me, I haven’t had any luck with undervolting—my attempts have always ended up being unstable, so I just keep things at the default settings.
Have you tried using the stock undervolt setting in Adrenalin?
Undervolting is definitely worth it for better power efficiency and less heat generation. When you set a max voltage, you can maintain good performance while reducing power consumption. Just keep in mind that it may take some tweaking to find the right settings for your specific card, as every GPU can behave a bit differently. If you don’t test correctly, it can lead to instability, though.
It’s also true that lower temps can help the card boost higher, giving you better performance. What do you think about tweaking it yourself?
I see...but I assume the optimal undervolt settings vary by card, right?
With your Ryzen 7600 and the RX 9070 XT, you’re looking at about 369W total draw according to PCPartPicker. If you add in some headroom for everything else, you’re still under 600W. As for undervolting, I’d definitely recommend it! It usually leads to lower temps and power usage without sacrificing much in performance—just ensure you test it for stability. How much you can undervolt really does depend on the specific chip you get, though.
I’m curious if the undervolt can stay stable, though. I saw some videos where games crashed after undervolting.
What CPU do you have?