PC Builders Community

Hey everyone!

I'm in the process of building a new mid-range gaming PC and I'm a bit stuck on selecting a Power Supply Unit (PSU). I want something reliable, efficient, and not overly expensive. My planned components are:

• CPU: AMD Ryzen 5 7600X
• GPU: NVIDIA GeForce RTX 4070
• Motherboard: B650 Chipset
• RAM: 32GB DDR5
• Storage: 1TB NVMe SSD + 2TB HDD

Based on these specs, what wattage would you recommend? I'm looking at 80+ Gold certified units. Any specific brands or models you've had good experiences with?

I'm not planning on heavy overclocking, but I want a little headroom for future upgrades or power spikes. Thanks in advance for your help!

Hey GamerGuy27!

For your build, a 750W 80+ Gold PSU should be more than sufficient and give you excellent headroom. The RTX 4070 and Ryzen 7600X are quite power-efficient for their performance class.

Good brands to consider that offer excellent reliability and efficiency include:

• Corsair (RMx or RM series)
• Seasonic (Focus GX or PX series)
• be quiet! (Straight Power 11 or Pure Power 11 FM)
• EVGA (SuperNOVA G6 or G7)

Any of these in a 750W 80+ Gold configuration will serve you very well. Check reviews for specific models to compare noise levels and modularity.

Echoing PC_Master_Race here. 750W is a solid choice. I personally went with a Corsair RM750x recently and it's been whisper quiet and very stable.

Also, keep an eye on PSU calculator results. Most online calculators will suggest around 600-650W for your build, but stepping up to 750W provides that comfort margin. Remember that PSUs are generally most efficient when running between 50-80% load.

For example, running a 750W PSU at 500W load (approx. 67% efficiency) is better than running a 650W PSU at 500W load (which might be closer to 60% efficiency depending on the unit).