Hardware Spec Index

Caldera PW-4583 Ultra 650W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW4583-ULTRA · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index785 (Power Supplies scale)
Category rank#5,465
Street price$39
Power650 W (rated)
Performance per dollar20.13
Released2020

Specifications

BrandCaldera
ModelCaldera PW-4583 Ultra
Rated output650 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully 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
Zephyra PW-3322 Plus 1000W 80 PLUS Platinum SFX Power Supply2,209$259Compare
Novexa PW-5180 XT 750W 80 PLUS Gold SFX Power Supply1,256$69Compare
Teralux PW-6304 XT 650W 80 PLUS Bronze ATX 3.0 Power Supply1,257$69Compare
Novexa PW-6844 Core 1300W 80 PLUS Gold ATX Power Supply2,416$289Compare
Vantrel PW-4290 Max 550W 80 PLUS Gold ATX Power Supply828$39Compare
Caldera PW-6611 Edge 1300W 80 PLUS Gold ATX 3.0 Power Supply2,544$279Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4583 Ultra 650W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/24526779 (accessed 2026-10-23).