Power Your Build

Choose a Corsair PSU That Fits

Assess your system's total wattage draw (we provide a calculator tip). For a mid-range gaming PC, 650-750W is typical; for RTX 4080 or higher, 850W+ is recommended. Prices range from $10 for basic units to $98 for premium platinum-rated ones. Consider a fully modular PSU for clean cable management. Check compatibility with your case and cable length.

What Corsair PSU do I need for an RTX 4080?

NVIDIA recommends at least 750W for an RTX 4080. To be safe and allow overclocking, choose an 850W or 1000W Corsair PSU, ideally with an ATX 3.0 connector for direct GPU power.

How do I use the Corsair PSU wattage calculator?

Enter your components (CPU, GPU, drives, etc.) in the online calculator. Add 20% headroom for peace of mind. The calculator suggests a minimum wattage, and you can then pick a Corsair unit above that.

What's the difference between Corsair RMx and HX power supplies?

Both are high-end. RMx is a mainstream high-efficiency PSU (Gold), while HX is Platinum-rated with better components and 10-year warranty. HX is designed for heavy overclocking and longer workloads.

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