Hardware Spec Index

Caldera PW-6451 Ultra 1600W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW6451-ULTRA · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index2,557 (Power Supplies scale)
Category rank#17,353
Street price$329
Power1600 W (rated)
Performance per dollar7.77
Released2025

Specifications

BrandCaldera
ModelCaldera PW-6451 Ultra
Rated output1,600 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin5×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty12 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-7208 Prime 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,339$259Compare
Novexa PW-8076 Prime 650W 80 PLUS Bronze ATX Power Supply761$39Compare
Vantrel PW-7953 Ti 650W 80 PLUS Gold ATX 3.1 Power Supply1,419$89Compare
Vantrel PW-5101 Pro 850W 80 PLUS Gold SFX Power Supply1,240$79Compare
Caldera PW-9787 Plus 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,786$379Compare
Caldera PW-3555 SE 850W 80 PLUS Gold ATX Power Supply1,435$99Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6451 Ultra 1600W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/86522041 (accessed 2026-10-25).