The Best Power Supplies for a Gaming PC

It is Cybenetics Gold rated at up to 91% efficiency, and its embossed cables with low-profile combs are easy to route. On rated output it sits mid-pack at 750W: the ASUS ROG Strix 1000W Platinum offers 1000W, and the MONTECH Century II 650W comes in at 650W. The CORSAIR RM750x comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter.

No depth is rated for the CORSAIR RM750x, so check the maker's page against your case's PSU bay. Its price falls between the Thermaltake Toughpower GT 1000W and the ASUS ROG Strix 1000W Platinum, based on our last check. Buyers who need a confirmed warranty should compare it with the ASUS ROG Strix 1000W Platinum, which offers 10 years.

It carries a Cybenetics LAMBDA A noise rating and a 10-year warranty. GaN MOSFETs raise efficiency, large ROG heatsinks cut temperatures and noise, and 0dB mode keeps it silent during light gaming. It matches the Thermaltake Toughpower GT 1000W on rated output (1000W).

On warranty it ties with the MONTECH Century II 650W at 10 years. It is the only pick here with a platinum 80 plus rating; the MONTECH Century II 650W has a gold 80 plus rating instead. The ASUS ROG Strix 1000W Platinum has no stated native 12V-2x6 cable; confirm the cable kit before pairing it with a 16-pin card.

At our last price check it topped the group, with the CORSAIR RM750x the nearest cheaper option. If you want a confirmed native 12V-2x6 cable count, look to the CORSAIR RM750x instead: it offers 1, while this one gives no figure.

Its warranty is 5 years. It is fully modular with a quiet HDB fan, and it carries a 5-year limited warranty with built-in protections. Its 850W output suits high-end CPU and GPU builds.

Its 850W rated output ranks third of 5 here, behind the ASUS ROG Strix 1000W Platinum (1000W) and ahead of the MONTECH Century II 650W (650W). On warranty it trails the group at 5 years, while the ASUS ROG Strix 1000W Platinum offers 10 years. Like the Thermaltake Toughpower GT 1000W and MONTECH Century II 650W, it has a gold 80 plus rating, while the ASUS ROG Strix 1000W Platinum uses a platinum 80 plus rating.

It also comes with multi-protection circuitry. The darkFlash DG850 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. It cost the least of the 5 picks at the time of writing, with the MONTECH Century II 650W the next step up.

Its flat modular cables have colour-matched connectors, and a hydraulic-bearing fan with Smart Zero Fan keeps it quiet. It matches the ASUS ROG Strix 1000W Platinum on rated output (1000W). Like the darkFlash DG850 and MONTECH Century II 650W, it has a gold 80 plus rating, while the ASUS ROG Strix 1000W Platinum uses a platinum 80 plus rating.

The Thermaltake Toughpower GT 1000W comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. At 140mm deep, compare it with your case's PSU clearance before buying. When we checked, only the MONTECH Century II 650W and cheaper picks cost less, and the CORSAIR RM750x cost more. If you want a confirmed warranty, look to the ASUS ROG Strix 1000W Platinum instead: it offers 10 years, while this one gives no figure.

Its 135mm FDB fan has a zero RPM mode, and it uses 100% Japanese capacitors. On rated output it trails the group at 650W, while the ASUS ROG Strix 1000W Platinum offers 1000W. It matches the ASUS ROG Strix 1000W Platinum on warranty (10 years).

It shares a gold 80 plus rating with the darkFlash DG850 and Thermaltake Toughpower GT 1000W; the ASUS ROG Strix 1000W Platinum goes with a platinum 80 plus rating. The MONTECH Century II 650W comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the MONTECH Century II 650W, so check the maker's page against your case's PSU bay. On price it sat second of 5, between the cheaper darkFlash DG850 and the pricier Thermaltake Toughpower GT 1000W, at the time of writing.