Hardware Spec Index

Novexa PW-8453 Ultra 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Novexa · SKU PW8453-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index1,452 (Power Supplies scale)
Category rank#22,092
Street price$109
Power850 W (rated)
Performance per dollar13.32
Released2026

Specifications

BrandNovexa
ModelNovexa PW-8453 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-9170 Prime 1000W 80 PLUS Gold ATX 3.0 Power Supply2,101$199Compare
Zephyra PW-6107 Prime 650W 80 PLUS Gold SFX Power Supply1,053$49Compare
Vantrel PW-5968 Ti 650W 80 PLUS Bronze ATX 3.1 Power Supply723$39Compare
Zephyra PW-4763 Plus 650W 80 PLUS Bronze ATX 3.1 Power Supply977$49Compare
Zephyra PW-2335 Ultra 1000W 80 PLUS Platinum ATX 3.1 Power Supply2,151$179Compare
Novexa PW-5486 XT 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,652$319Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-8453 Ultra 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/1162261 (accessed 2026-10-19).