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EVGA SuperNOVA 850 Ga, 80 Plus Gold 850W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0850-X1
EVGA

EVGA SuperNOVA 850 Ga

Bottom line: The EVGA SuperNOVA 850 Ga ($299.99 on Amazon as of 2026-10-21 04:24 UTC): 80 Plus Gold certified: 90% or higher efficiency under typical loads; main trade-off: double ball bearing fans run noisier than fluid dynamic bearing designs. Another in-stock pick with the same 850W 80 Plus Gold fully modular ATX power supply: the MSI MAG A850GL PCIE5, $109.99 on Amazon as of (price may vary).

$299.99

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Buy on Amazon — $299.99 Compare to similar power supplies

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 80 Plus Gold certified: 90% or higher efficiency under typical loads
  • ✓ 10 year limited warranty, longer than most 850W units in this class
  • ✓ ECO Mode stops the fan entirely at low and medium loads
  • ✓ 100% Japanese capacitors with LLC resonant and DC-DC converter design
  • ✓ Compact 150mm depth fits tight mid-towers and short PSU shrouds

Cons

  • ✗ Double ball bearing fans run noisier than fluid dynamic bearing designs
  • ✗ No ATX 3.x or native 12VHPWR cable listed in the product specs
  • ✗ 120V input rating listed, so it is not a global dual-voltage unit
  • ✗ 850W caps headroom for dual-GPU or 600W-class flagship card builds

Manufacturer description

The EVGA SuperNOVA 850 GA (220-GA-0850-X1) is a fully modular 850W ATX power supply built for mid-to-high-end gaming and workstation builds that need headroom for a modern GPU and CPU on a single rail budget. Its 80 Plus Gold certification means 90% or higher efficiency under typical loads, so less of the wall draw turns into waste heat inside your case. EVGA specifies 100% Japanese capacitors and an LLC resonant circuit with a DC-DC converter design to tighten 3.3V and 5V stability, which matters when you are loading NVMe drives, fans, and RGB gear alongside the GPU. The double ball bearing…

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SpecPicks Verdict

SpecPicks scored EVGA SuperNOVA 850 Ga using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. EVGA's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

Is the EVGA SuperNOVA 850 GA fully modular?

Yes. Every cable detaches, so you only install the connectors your build actually uses, which reduces clutter and improves case airflow.

How long is the warranty on the SuperNOVA 850 GA?

EVGA lists a 10 year limited warranty on this model, backed by EVGA customer support. Check the product listing for current registration and claim terms.

What does EVGA ECO Mode actually do?

ECO Mode keeps the double ball bearing fan off during low and medium loads, so the power supply runs silent at idle and spins up only when the load demands it.

Will an 850W power supply handle an RTX 4080 or 4090 build?

850W is the commonly cited floor for high-end single-GPU systems. Confirm your specific GPU maker's recommended PSU wattage before buying.

How deep is this PSU, and will it fit a compact case?

It measures 150mm deep, which is shorter than many 850W units and fits most mid-towers and ATX-compatible compact chassis. Verify your case's PSU clearance.

Key Features

  • 80 plus Gold certified, with 90% efficiency or higher under typical loads
  • Fully modular to reduce clutter and improve airflow
  • 100% Japanese capacitors, LLC resonant circuit design DC-DC converter design to improve 3.3V. 5V. Stability
  • Double ball Bearing fan and EVGA eco mode for exceptional reliability and quiet operation
  • 10 year limited Warranty and unparalleled EVGA Customer Support

Full Specifications

BrandEVGA
Wattage850 watts
Model NameSuperNOVA
Unit Count1 Count
Form FactorATX
Model Number220-GA-0850-X1
Connector Type24-pin
Cooling MethodFan
Item Type NamePower Supply
Number of Fans1
Output Wattage850 watts
Item Dimensions5.9 x 5.9 x 3.4 inches
Mfr Part Number220-GA-0850-X1
Number of Items1
Compatible DevicesPersonal Computer
Connector Quantity11
Power Supply DesignFull Modular
Warranty Description10 year manufacturer
Minimum Input Voltage220 volts
Item dimensions L x W x H5.9 x 5.9 x 3.4 inches
Full listing titleEVGA SuperNOVA 850 Ga, 80 Plus Gold 850W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0850-X1

Ready to buy?

EVGA SuperNOVA 850 Ga, 80 Plus Gold 850W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0850-X1 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $299.99

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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EVGA SuperNOVA 850 Ga, 80 Plus Gold 850W, Fully Modular, ECO Mode with Dbb Fan, 10 Year Warranty, Compact 150mm Size, Power Supply 220-GA-0850-X1
$299.99
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