Hardware Spec Index

Caldera PW-4957 XT 650W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW4957-XT · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index982 (Power Supplies scale)
Category rank#9,691
Street price$49
Power650 W (rated)
Performance per dollar20.04
Released2022

Specifications

BrandCaldera
ModelCaldera PW-4957 XT
Rated output650 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-pin1×
Form factorATX
ModularitySemi-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
Zephyra PW-4146 Ti 750W 80 PLUS Gold ATX 3.0 Power Supply1,133$59Compare
Caldera PW-7485 Max 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,822$289Compare
Novexa PW-6014 XT 750W 80 PLUS Bronze ATX 3.1 Power Supply991$49Compare
Zephyra PW-1585 Plus 550W 80 PLUS Bronze ATX 3.1 Power Supply1,050$49Compare
Caldera PW-2939 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,953$149Compare
Novexa PW-9913 Ti 550W 80 PLUS Bronze ATX 3.0 Power Supply772$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4957 XT 650W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/1993686 (accessed 2026-10-21).