Hardware Spec Index

Caldera PW-3247 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW3247-ULTRA · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index1,714 (Power Supplies scale)
Category rank#16,001
Street price$139
Power850 W (rated)
Performance per dollar12.33
Released2024

Specifications

BrandCaldera
ModelCaldera PW-3247 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Novexa PW-2983 Ultra 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,430$239Compare
Caldera PW-7650 Core 850W 80 PLUS Gold ATX Power Supply1,516$109Compare
Zephyra PW-6818 Plus 850W 80 PLUS Gold SFX Power Supply1,394$99Compare
Zephyra PW-7459 Max 1000W 80 PLUS Gold ATX Power Supply2,178$199Compare
Novexa PW-3930 SE 650W 80 PLUS Gold ATX 3.0 Power Supply875$39Compare
Caldera PW-9152 Prime 750W 80 PLUS Gold ATX Power Supply1,418$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3247 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/54378026 (accessed 2026-10-20).