Top 5 · side by side
The best power supplies
Side-by-side spec comparison of the top 5 power supplies ranked by Versus score. Real UK prices, no sponsored rows.
Power Supplies | best of 5
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Corsair Corsair RMX White Series (2018) 94Points | Corsair Corsair RM850x Shift Fully Modular ATX Power Supply – Modular Side Interface – ATX 3.0 & PCIe 5.0 Compliant – Zero RPM Fan Mode - 40°C Rated Capacitors – 80 Plus Gold Efficiency – Black 91Points | Corsair Corsair RM850x Shift ATX Power Supply 88Points | Corsair CORSAIR HX1000i SHIFT Fully Modular ATX Power Supply – Built-in iCUE LINK System Hub 85Points | ASUS Asus ROG Strix 1000W Platinum White PSU 82Points | |
|---|---|---|---|---|---|
| Best price | £486Amazon | £243Amazon | £240Amazon | £220Amazon | £200Amazon |
| Output | |||||
| Wattage(W) | — | 850 W | — | — | 1000 W |
| Efficiency rating | Gold | 80 Plus Gold | — | — | Platinum |
| Design | |||||
| Modular | Fully modular | Fully modular | Fully modular | Fully modular | Fully modular |
| Fan size(mm) | — | 135 mm | — | — | — |
| Warranty(years) | — | 10 years | — | — | — |
| See offer | View on Amazon | View on Amazon | View on Amazon | View on Amazon | View on Amazon |