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Quick Answer
Yes, 650W is enough for the RX 7700 XT and Ryzen 5 7600. This efficient AMD combo draws approximately 320-370W under gaming load. A quality 650W PSU handles it with over 280W of headroom.
Both the Ryzen 5 7600 and RX 7700 XT are power-efficient components. The 7600 barely exceeds 75W in gaming, and the 7700 XT is well-optimized on RDNA 3 architecture. This combo keeps total power draw very manageable.
At 370W peak gaming load, a 650W PSU runs at just 57% capacity. This is excellent for PSU longevity, noise, and efficiency. You have enough headroom for any power spike the RX 7700 XT can produce.
If you upgrade to an RX 7800 XT (263W TDP) or RTX 4070 (200W TDP), the 650W PSU still handles it. Only if you jump to a 300W+ GPU would you need more wattage.
Our Verdict
650W is the sweet spot for the RX 7700 XT + Ryzen 5 7600. Efficient, quiet, and plenty of headroom. No need to overspend on wattage for this sensible mid-range build.