Hardware Spec Index

Novexa PW-1491 XT 850W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Novexa · SKU PW1491-XT · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index1,836 (Power Supplies scale)
Category rank#47,292
Street price$179
Power850 W (rated)
Performance per dollar10.26
Released2022

Specifications

BrandNovexa
ModelNovexa PW-1491 XT
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-7983 Edge 550W 80 PLUS Gold ATX 3.1 Power Supply983$39Compare
Zephyra PW-4128 Prime 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,980$399Compare
Caldera PW-2250 Ultra 850W 80 PLUS Gold ATX Power Supply1,801$129Compare
Zephyra PW-3562 Edge 750W 80 PLUS Bronze ATX 3.0 Power Supply1,334$69Compare
Novexa PW-2834 XT 1000W 80 PLUS Titanium ATX 3.1 Power Supply2,156$229Compare
Novexa PW-8946 Pro 850W 80 PLUS Platinum ATX Power Supply2,135$189Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-1491 XT 850W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/6970501 (accessed 2026-10-26).