How to Choose a Power Supply (PSU) for Gaming
The power supply is the least glamorous part of a build, but a cheap or underpowered one can cause crashes — or damage your components. Here's how to choose a PSU you can trust.
How much wattage do you need?
It depends mainly on your GPU and CPU. As a rough guide, mid-range builds are comfortable around 550–650W, while high-end cards may want 750–850W or more. Always leave headroom above your system's peak draw rather than running a PSU at its limit.
Efficiency ratings (80 Plus)
The 80 Plus rating (Bronze, Gold, Platinum) indicates efficiency. Gold is a great balance of price and quality for most gamers, running cooler and wasting less power.
Quality matters more than watts
A reputable brand with good internal components is far more important than a big wattage number on a cheap unit. A failing PSU can take other parts with it, so this is not the place to cut corners.
Modular vs non-modular
Modular PSUs let you use only the cables you need, improving airflow and cable management. It's a convenience feature, not a performance one.
Quick checklist
Reputable brand, enough wattage with headroom, 80 Plus Gold if possible, and the right connectors for your GPU. Get those right and your PSU will quietly last through multiple builds.
Want to know exactly what your PC can handle? Check it against any game and get an instant verdict.
Check my PC now →