Best 850w Power Supplies

The Corsair RM850e delivers solid performance as an affordable ATX 3.0 PSU, earning praise for its efficiency and fully modular design. Tech4Gamers reviewer Sameed Hussain noted it offers 'impressive efficiency and acceptable voltage regulation' despite using non-Japanese capacitors and lacking a native 12VHPWR connector. KitGuru's Allan 'Zardon' Campbell highlighted its 7-year warranty and low-noise operation with a rifle-bearing fan. While it's a budget-friendly option, the lack of a native 12VHPWR connector may disappoint users with high-end graphics cards.

The EVGA SuperNOVA 850 G7 delivers high performance in a compact form factor, according to Tom's Hardware and Hardware Busters reviews. It offers excellent efficiency and build quality while maintaining reliable operation under load. However, it lacks PCIe 5.0 support and suffers from high inrush currents. This PSU is ideal for gamers seeking a powerful yet space-saving solution, though those requiring latest-generation PCIe connectors may need to look elsewhere.

The Thermaltake Toughpower GF A3 850W is a Platinum-certified ATX v3.0 and PCIe 5.0 compatible power supply with a 12VHPWR connector rated at 450W. Hardware Busters praised its efficiency, quiet operation, and fully modular design, though noted the use of sleeve bearing fans instead of fluid dynamic bearings. Tom's Hardware called it one of the first ATX v3.0 PSUs with decent performance and quiet operation, though it lacks peak efficiency and has high inrush current at 230V. This PSU is ideal for users seeking reliable v3.0 compatibility with a 10-year warranty, but those wanting the absolute best in performance or fan quality may want to consider alternatives.

The EVGA SuperNOVA 850 G6 is a solid 850W power supply that delivers good performance and build quality, according to Tom's Hardware. It features full modularity, a compact design, and strong voltage regulation, though reviewers noted issues with fan behavior and efficiency at typical loads. While it offers a 10-year warranty and is well-suited for high-end builds, it faces stiff competition in its class.

The Seasonic Focus GX-850 V4 delivers full power at 46°C and is ATX v3.1 and PCIe 5.1 ready with high build quality and good ripple suppression. However, reviewers noted it lacks competitive overall performance and has a fan speed profile that needs improvement. TechPowerUp and Hardware Busters both criticized its transient response and efficiency under light loads, while one user on Facebook mentioned returning multiple PSUs before settling on this model. It's best suited for users prioritizing build quality and features over peak performance.

The Seasonic Focus PX-850 is a high-quality 850W Platinum power supply that delivers excellent efficiency and reliability. Reviewers praised its fully modular design, high-grade Japanese capacitors, and Fluid Dynamic Bearing fan with customizable cooling modes. The unit offers a single +12V rail capable of 70A and comes with a 10-year warranty, setting it apart from competitors. While it's priced competitively at around $140, it remains more expensive than some budget alternatives. This PSU is ideal for enthusiasts and professionals seeking premium build quality and long-term reliability, though budget-conscious users might find better value elsewhere.