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Quick Answer
Yes, a 450W PSU comfortably runs the GTX 1660 Super. This GPU has a modest 125W TDP and the entire system typically draws 250-280W under gaming load. Even basic 450W units handle this classic GPU without any issues.
The GTX 1660 Super is from a generation designed for efficiency. At 280W total system draw, a 450W PSU runs at 62% capacity with plenty of headroom. This GPU has no aggressive power spikes, making it easy on any PSU.
If you have an older 450W PSU from a previous build, it is perfectly suitable for the GTX 1660 Super. Check that it has a 6-pin or 8-pin PCIe power connector (the 1660 Super requires one 8-pin).
The GTX 1660 Super remains a solid 1080p gaming card in 2026 for esports and older titles. Paired with a budget CPU and a small PSU, it creates a compact, efficient, and affordable gaming system.
Our Verdict
A 450W PSU runs the GTX 1660 Super without any concerns. This is one of the most power-friendly gaming GPUs ever made. Reuse your existing PSU and save the money for a more impactful upgrade.
Yes, a 500W PSU can run the RTX 4060. This GPU has a remarkably low 115W TDP. Combined with a mid-range CPU, total system power is approximately 250-300W, leaving 200W of headroom on a 500W unit. NVIDIA officially lists 550W as recommended.
Yes, a 550W PSU can run the RTX 4060 Ti 16GB. The 16GB variant has the same 160W TDP as the 8GB model. With a mid-range CPU, total system power is approximately 300-350W, well within a quality 550W PSU's capacity.
Yes, 650W is enough for the RTX 4070 and i5-13400F. This combo draws approximately 350-380W under full gaming load. A quality 650W 80+ Gold PSU provides adequate headroom with 270W to spare for drives, fans, and power spikes.