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850W Power Supplies

All Power Supplies

35 850W power supplies from Thermaltake, Corsair, MSI and more. Most cost $86 to $139, and half cost less than $120.

Top brands: MSI (5)Corsair (4)

CorsairSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$114.93-21%List: $144.99
as of 11/04/2026 13:10 PST - Details
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
ThermaltakeSpec score 8.5

850 Watts, Gold, ATX, ATX 3.1

+850W output for high-end graphics cards
+ATX 3.1 compatible design
+Native PCIe 5.1 12V-2x6 connector
$104.82-19%List: $129.99
as of 11/04/2026 08:06 PST - Details
SilverStoneSpec score 8.7

850 Watts, Platinum, SFX, ATX 3.0

+Compact SFX form factor for small builds
+850W output for high-end systems
+Includes 16-pin GPU connector
$217.99-7%Was: $233.99
as of 11/04/2026 07:08 PST - Details
Lian LiSpec score 9.3

850 Watts, Gold, SFX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$144.00
as of 11/03/2026 23:59 PST - Details
MSISpec score 9.5

850 Watts, Platinum, ATX, Fully modular

+Platinum: the highest efficiency of the 47 here
+850 watts: the most watts of the 47 here
$119.99-25%List: $159.99
as of 11/04/2026 00:18 PST - Details
MSISpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output suits high-end graphics card builds
+Fully modular cabling reduces loose cables
+16-pin GPU connector included
$109.99-21%List: $139.99
as of 11/04/2026 00:18 PST - Details
CorsairSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$123.99-20%List: $154.99
as of 11/04/2026 13:10 PST - Details
MSISpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$105.25-19%List: $129.99
as of 11/04/2026 00:18 PST - Details
CorsairSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for higher-power builds
+Fully modular cable design
+Supports 16-pin GPU connector
−Large ATX form factor needs full-size case space
$139.99-18%List: $169.99
as of 11/04/2026 13:10 PST - Details
ThermaltakeSpec score 8.5

850 Watts, Gold, ATX, ATX 3.1

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
−Fully modular not listed: 37 of the 47 here list one
$89.99-18%List: $109.99
as of 11/04/2026 08:06 PST - Details
NZXTSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$124.99-17%List: $149.99
as of 11/04/2026 00:29 PST - Details
RosewillSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$74.95-17%List: $89.99
as of 11/04/2026 07:06 PST - Details
ThermaltakeSpec score 8.5

850 Watts, Gold, ATX, ATX 3.1

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
−Fully modular not listed: 37 of the 47 here list one
$86.49-14%List: $99.99
as of 11/04/2026 08:06 PST - Details
ASUSSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for high-performance builds
+Fully modular cabling
+Includes a 12V-2x6 GPU cable
$132.99-5%List: $139.99
as of 11/04/2026 12:09 PST - Details
MSISpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for high-end graphics card builds
+Fully modular cables reduce cable clutter
+Native 12V-2x6 16-pin GPU connector
−Compact form factor is not a standard ATX size
$134.99
as of 11/04/2026 00:18 PST - Details
ThermaltakeSpec score 8.5

850 Watts, Gold, ATX, ATX 3.1

+850W output for high-end graphics cards
+ATX 3.1 compatible design
+16-pin GPU connector included
−Not fully modular
$129.99
as of 11/04/2026 08:06 PST - Details
SeasonicSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cable design
+ATX 3.1 compatible
$129.99
as of 11/04/2026 07:07 PST - Details
ThermaltakeSpec score 8.5

850 Watts, Gold, ATX, ATX 3.1

+850W output for high-end systems
+ATX 3.1 compliant with PCIe 5.1 support
+Native 16-pin GPU connector
$129.99
as of 11/04/2026 08:06 PST - Details
MontechSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850 watts: the most watts of the 47 here
+Gold: only 5 of 47 here have a higher efficiency
$89.90
as of 11/04/2026 00:16 PST - Details
be quiet!Spec score 9.5

850 Watts, Platinum, ATX, Fully modular

+Platinum: the highest efficiency of the 47 here
+850 watts: the most watts of the 47 here
$129.90-28%List: $179.90
as of 11/04/2026 13:06 PST - Details
XPGSpec score 9.3

850 Watts, Gold, Fully modular, ATX 3.1

+850W output for high-end graphics cards
+Fully modular cable design
+ATX 3.1 compatible design
$89.99-25%List: $119.99
as of 11/04/2026 09:06 PST - Details
RaijintekSpec score 8.5

850 Watts, Gold, ATX, Non-modular

+850W output for mid-to-high power builds
+ATX 3.1 standard with PCIe 5.1 support
+16-pin connector for modern graphics cards
−Non-modular cabling leaves all cables permanently attached
$79.99
as of 11/04/2026 00:48 PST - Details
CorsairSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for higher-power builds
+Fully modular cable design
+Supports 16-pin GPU connector
−Large ATX form factor needs full-size case space
No price recorded yet.
EnermaxSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+Fully modular cabling for cleaner builds
+Includes 16-pin GPU connector for modern graphics cards
+ATX 3.1 standard for current PC builds
$95.49
as of 11/04/2026 14:08 PST - Details
FSPSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cables reduce clutter inside the case
+Native 16-pin GPU connector for current graphics cards
$129.99
as of 11/04/2026 14:11 PST - Details
PhanteksSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for high-end graphics card builds
+Fully modular individual cables
+Fanless design for silent operation
$119.99
as of 11/04/2026 00:38 PST - Details
RosewillSpec score 9.3

850 Watts, Gold, ATX, Fully modular

+850W output for high-power gaming and workstation builds
+Fully modular cable design
+Includes 16-pin PCIe 5.0 12V-2x6 connector
$98.90
as of 11/04/2026 07:06 PST - Details

Compare specs

power supplyWattsEfficiencyFormModularATX versionSpec scorePrice
850GoldATXFully modularATX 3.19.3$114.93
as of 11/04/2026 13:10 PST - Details
850BronzeATXSemi-modularATX 3.18.1$59.99
as of 11/04/2026 07:06 PST - Details
850GoldATXATX 3.18.5$104.82
as of 11/04/2026 08:06 PST - Details
850PlatinumSFXATX 3.08.7$217.99
as of 11/04/2026 07:08 PST - Details
850GoldSFXFully modularATX 3.19.3$144.00
as of 11/03/2026 23:59 PST - Details
850PlatinumATXFully modularATX 3.19.5$119.99
as of 11/04/2026 00:18 PST - Details
850GoldATXFully modularATX 3.19.3$109.99
as of 11/04/2026 00:18 PST - Details
850GoldATXFully modularATX 3.19.3$123.99
as of 11/04/2026 13:10 PST - Details
850GoldATXFully modularATX 3.19.3$105.25
as of 11/04/2026 00:18 PST - Details
850GoldATXFully modularATX 3.19.3$139.99
as of 11/04/2026 13:10 PST - Details

Before you buy

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