850W Power Supplies

2 850W power supplies from Thermaltake, Corsair, MSI and more. Prices run $60 to $289.

RosewillSpec score 8.1

850 Watts, Bronze, ATX, Semi-modular

+850 watts: the most watts of the 47 here

−Bronze: 46 of the 47 here have a higher efficiency

$59.99-25%List: ~~$79.99~~

as of 11/04/2026 07:06 PST - Details

EVGASpec score 8.5

850 Watts, Gold, Semi-modular

+Delivers 850 watts for high-power builds

+Semi-modular design keeps some cables permanently attached

+Includes EVGA ECO Mode

−Semi-modular design offers fewer cable removal options than fully modular units

$289.29

as of 11/04/2026 14:09 PST - Details

Compare specs

power supply	Watts	Efficiency	Form	Modular	ATX version	Spec score	Price
	850	Bronze	ATX	Semi-modular	ATX 3.1	8.1	$59.99 as of 11/04/2026 07:06 PST - Details
	850	Gold		Semi-modular		8.5	$289.29 as of 11/04/2026 14:09 PST - Details

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.