Hardware Spec Index

Caldera PW-8581 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW8581-PRO · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index1,398 (Power Supplies scale)
Category rank#45,879
Street price$109
Power850 W (rated)
Performance per dollar12.83
Released2026

Specifications

BrandCaldera
ModelCaldera PW-8581 Pro
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 factorATX
ModularityFully modular
Fan135 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
Teralux PW-8421 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,310$69Compare
Novexa PW-5256 Edge 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,388$279Compare
Vantrel PW-7685 Plus 650W 80 PLUS Bronze ATX 3.0 Power Supply873$49Compare
Vantrel PW-1597 Prime 1000W 80 PLUS Gold ATX Power Supply2,205$219Compare
Teralux PW-5898 Ti 650W 80 PLUS Bronze ATX 3.1 Power Supply779$39Compare
Caldera PW-9468 Plus 750W 80 PLUS Bronze ATX Power Supply1,262$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8581 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/91678446 (accessed 2026-10-19).