Hardware Spec Index

Caldera PW-6671 Pro 650W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW6671-PRO · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index820 (Power Supplies scale)
Category rank#43,184
Street price$39
Power650 W (rated)
Performance per dollar21.03
Released2021

Specifications

BrandCaldera
ModelCaldera PW-6671 Pro
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularitySemi-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Novexa PW-8927 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply742$39Compare
Vantrel PW-3672 Pro 1600W 80 PLUS Titanium ATX Power Supply2,820$289Compare
Caldera PW-8801 XT 750W 80 PLUS Bronze ATX 3.1 Power Supply1,009$49Compare
Novexa PW-2666 XT 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,276$239Compare
Vantrel PW-9235 Ultra 1600W 80 PLUS Titanium ATX Power Supply2,791$359Compare
Teralux PW-4881 Ultra 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,390$249Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6671 Pro 650W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/41310578 (accessed 2026-10-23).