Hardware Spec Index

Novexa PW-3812 Ultra 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW3812-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index1,668 (Power Supplies scale)
Category rank#13,161
Street price$139
Power850 W (rated)
Performance per dollar12.00
Released2019

Specifications

BrandNovexa
ModelNovexa PW-3812 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty10 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-7152 Max 1600W 80 PLUS Platinum ATX Power Supply2,732$349Compare
Novexa PW-2483 Plus 550W 80 PLUS Bronze ATX Power Supply933$39Compare
Caldera PW-3184 Ultra 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,683$319Compare
Zephyra PW-9784 Prime 550W 80 PLUS Bronze SFX Power Supply807$39Compare
Vantrel PW-8090 Prime 850W 80 PLUS Platinum SFX Power Supply1,821$149Compare
Teralux PW-7184 SE 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,335$309Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-3812 Ultra 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/21754398 (accessed 2026-10-25).