Hardware Spec Index

Caldera PW-3939 Core 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW3939-CORE · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index1,747 (Power Supplies scale)
Category rank#7,195
Street price$129
Power850 W (rated)
Performance per dollar13.54
Released2021

Specifications

BrandCaldera
ModelCaldera PW-3939 Core
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty10 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Vantrel PW-2275 Edge 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,980$369Compare
Teralux PW-2704 Prime 850W 80 PLUS Platinum ATX 3.0 Power Supply1,822$169Compare
Zephyra PW-1373 Ultra 1000W 80 PLUS Gold SFX Power Supply2,442$289Compare
Novexa PW-6154 Max 850W 80 PLUS Gold ATX 3.1 Power Supply1,614$99Compare
Caldera PW-4875 Max 650W 80 PLUS Gold ATX 3.0 Power Supply1,269$69Compare
Teralux PW-6484 Max 850W 80 PLUS Gold SFX Power Supply1,584$99Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3939 Core 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/7445602 (accessed 2026-10-21).