I'm building a PC that will be used for gaming, moderate productivity tasks, and data hoarding. Here's my current setup:
- CPU: AMD Ryzen 7 9850X3D
- CPU Cooler: Thermalright Phantom Spirit 120 SE
- Motherboard: Asus ROG STRIX X870E-H Gaming WiFi7
- Memory: Kingston FURY Beast 32GB (2x16GB) DDR5-6000 CL30
- GPU: Asus TUF GAMING OC GeForce RTX 5070 Ti 16GB
- Storage: Samsung 9100 PRO 2TB PCIe5.0, Western Digital WD Black SN850X 4TB PCIe4.0, Seagate Barracuda 20TB 7200RPM
This adds up to about 571W on PcPartPicker, but with additional features like fans and a capture card, I'm estimating that I might hit around 650W at peak usage. Considering the common advice of using a PSU that can handle about 30% more than your max load, I'm wondering if an 850W power supply would be sufficient. Should I opt for a higher capacity PSU like 1000W for safety and future upgrades?
5 Answers
You're good with 850W. It's wise to invest in a quality A-tier PSU since you're using high-end components. This will give you reliable performance. Check out some recommendations online.
850W should be ample for you. I have a 750W running a similar setup without issues. Just remember, peak usage only happens occasionally, so you won't always be maxing out your PSU.
An 850W PSU should be more than enough for your setup. Just make sure to go for a high-quality unit; a reputable brand matters. A bad PSU can lead to issues down the road.
850W is plenty! Most of the time, your components won’t draw the max wattage since they don’t run full throttle 24/7. As a tip, if the noise of PSU fans isn't an issue, aiming for a lower load is great for longevity, but 850W is perfectly fine.
'Just enough' would be a 650W, so you’re in a safe zone with 850W. You’ll have some extra headroom, which is always a good idea, especially if you plan on upgrading to something more powerful later.
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