Hardware Spec Index

Caldera PW-6311 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW6311-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index2,082 (Power Supplies scale)
Category rank#20,550
Street price$189
Power850 W (rated)
Performance per dollar11.02
Released2025

Specifications

BrandCaldera
ModelCaldera PW-6311 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
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Vantrel PW-9436 SE 1600W 80 PLUS Titanium ATX Power Supply2,787$379Compare
Novexa PW-5298 Edge 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,571$339Compare
Zephyra PW-4489 Plus 1000W 80 PLUS Gold ATX 3.0 Power Supply2,132$199Compare
Teralux PW-6417 Plus 1200W 80 PLUS Platinum ATX Power Supply2,214$229Compare
Novexa PW-7552 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply1,117$59Compare
Novexa PW-3035 Ultra 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,893$399Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6311 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/6237814 (accessed 2026-10-26).