Hardware Spec Index

Novexa PW-7781 Prime 850W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Novexa · SKU PW7781-PRIME · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index1,947 (Power Supplies scale)
Category rank#21,866
Street price$179
Power850 W (rated)
Performance per dollar10.88
Released2025

Specifications

BrandNovexa
ModelNovexa PW-7781 Prime
Rated output850 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Vantrel PW-1571 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,296$79Compare
Caldera PW-4717 Edge 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,555$349Compare
Zephyra PW-2984 Pro 1000W 80 PLUS Gold ATX 3.1 Power Supply2,130$199Compare
Caldera PW-2254 Core 1300W 80 PLUS Gold ATX Power Supply2,426$229Compare
Teralux PW-5514 Plus 850W 80 PLUS Gold ATX 3.0 Power Supply1,206$69Compare
Caldera PW-4345 Max 1300W 80 PLUS Gold ATX Power Supply2,654$299Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-7781 Prime 850W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/3386953 (accessed 2026-10-21).