Hardware Spec Index

Caldera PW-3289 Prime 650W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW3289-PRIME · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index831 (Power Supplies scale)
Category rank#26,612
Street price$39
Power650 W (rated)
Performance per dollar21.31
Released2020

Specifications

BrandCaldera
ModelCaldera PW-3289 Prime
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Vantrel PW-3991 SE 1000W 80 PLUS Gold ATX 3.1 Power Supply2,305$209Compare
Zephyra PW-4933 Prime 850W 80 PLUS Platinum ATX 3.1 Power Supply1,954$149Compare
Teralux PW-1683 Pro 850W 80 PLUS Gold SFX Power Supply1,289$79Compare
Zephyra PW-3797 Edge 1600W 80 PLUS Titanium ATX Power Supply2,733$339Compare
Zephyra PW-6556 Core 1000W 80 PLUS Gold ATX 3.0 Power Supply1,790$119Compare
Novexa PW-6542 SE 650W 80 PLUS Gold ATX Power Supply1,212$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3289 Prime 650W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/46431444 (accessed 2026-10-26).