Hardware Spec Index

Caldera PW-2957 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW2957-PRIME · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index1,021 (Power Supplies scale)
Category rank#39,635
Street price$49
Power650 W (rated)
Performance per dollar20.84
Released2024

Specifications

BrandCaldera
ModelCaldera PW-2957 Prime
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
Fan135 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
Teralux PW-4128 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,561$109Compare
Vantrel PW-4810 XT 650W 80 PLUS Gold ATX Power Supply676$39Compare
Vantrel PW-9729 Ti 550W 80 PLUS Bronze ATX 3.1 Power Supply853$49Compare
Caldera PW-4837 XT 1200W 80 PLUS Platinum ATX 3.0 Power Supply2,075$199Compare
Zephyra PW-3028 XT 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,663$329Compare
Zephyra PW-5999 Edge 650W 80 PLUS Gold ATX 3.1 Power Supply1,094$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2957 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/2294255 (accessed 2026-10-19).