KITGURU SHORTLISTS: THE BEST POWER SUPPLY OF 2025

The Seasonic Prime TX-1600 Noctua Edition may have an almost identical design to the original Seasonic version we reviewed a little while ago, but the new grille design, state of the art fan implementation and clever fan curve mean this power supply is one of the quietest we have tested. The fact it can withstand 1600 watts while generating almost no audible noise is remarkable.

This is one of the finest power supplies we have tested, targeting the high end enthusiast audience who have a desire to reduce system noise as much as possible. It is one of the few passively cooled units we have tested that exhibits no coil whine. Standing behind the X Silent Edge Platinum 1100 is a class leading 15 year warranty.

The RMx series has received an update from Corsair to meet the latest ATX 3.1 standard. It also boasts a new fan control knob - allowing the user to adjust fan speed under light loads, from zero RPM to full speed. Both 850 and 1000W units are fully modular and adopt all Japanese capacitors with a low noise fluid dynamic bearing fan. Corsair supports this range with a 10 year warranty.

The NZXT C850, C1000 and C1200 are all exceptional power supplies and performed flawlessly during our tests over the last couple of weeks. The fully modular design and lovely white appearance will appeal to a wide audience of enthusiast system builders, and you get the choice of 850W, 1000W or 1200W capacities which all deliver superb results.

Corsair's new SF1000 and SF850 SFX power supplies are among the finest on the market in 2024. The company's partnership with Great Wall is reaping dividends - Corsair can confidently claim that for the small form factor market, these are the ultimate PSUs you can currently buy.