Hardware Spec Index

Caldera PW-8591 SE 650W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW8591-SE · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index711 (Power Supplies scale)
Category rank#8,842
Street price$39
Power650 W (rated)
Performance per dollar18.23
Released2026

Specifications

BrandCaldera
ModelCaldera PW-8591 SE
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularityNon-modular
Fan120 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
Zephyra PW-3858 Pro 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,404$269Compare
Zephyra PW-4134 Edge 750W 80 PLUS Bronze ATX 3.1 Power Supply1,212$69Compare
Caldera PW-9881 Ti 850W 80 PLUS Gold ATX 3.1 Power Supply1,591$119Compare
Caldera PW-6614 XT 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,598$349Compare
Vantrel PW-5281 Plus 1200W 80 PLUS Gold ATX Power Supply2,232$269Compare
Caldera PW-5718 Plus 1000W 80 PLUS Gold SFX Power Supply1,918$189Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8591 SE 650W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/35455929 (accessed 2026-10-20).