Hardware Spec Index

Caldera PW-2591 XT 650W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW2591-XT · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index1,049 (Power Supplies scale)
Category rank#41,541
Street price$49
Power650 W (rated)
Performance per dollar21.41
Released2019

Specifications

BrandCaldera
ModelCaldera PW-2591 XT
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
Fan140 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
Caldera PW-4402 XT 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,725$329Compare
Teralux PW-4573 Pro 850W 80 PLUS Gold ATX Power Supply1,593$129Compare
Teralux PW-6684 Edge 750W 80 PLUS Gold ATX Power Supply1,485$89Compare
Teralux PW-4435 Core 650W 80 PLUS Bronze ATX 3.1 Power Supply1,313$79Compare
Zephyra PW-5470 Plus 550W 80 PLUS Gold SFX Power Supply696$39Compare
Caldera PW-9772 Prime 1000W 80 PLUS Gold SFX Power Supply2,008$189Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2591 XT 650W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/4916809 (accessed 2026-10-23).