Hardware Spec Index

Caldera PW-6654 Ultra 850W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW6654-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index1,158 (Power Supplies scale)
Category rank#19,275
Street price$69
Power850 W (rated)
Performance per dollar16.78
Released2023

Specifications

BrandCaldera
ModelCaldera PW-6654 Ultra
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan140 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-1970 XT 1300W 80 PLUS Platinum ATX Power Supply2,715$329Compare
Zephyra PW-3686 Max 650W 80 PLUS Gold SFX Power Supply1,222$59Compare
Teralux PW-1362 Max 1600W 80 PLUS Titanium ATX Power Supply2,750$319Compare
Novexa PW-5489 Edge 850W 80 PLUS Gold ATX 3.0 Power Supply2,003$139Compare
Caldera PW-5214 Core 1200W 80 PLUS Gold ATX 3.1 Power Supply2,600$269Compare
Teralux PW-5795 Max 1300W 80 PLUS Platinum ATX Power Supply2,819$339Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6654 Ultra 850W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/94886485 (accessed 2026-10-26).