Hardware Spec Index

Caldera PW-1643 Plus 1000W 80 PLUS Platinum ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW1643-PLUS · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index2,422 (Power Supplies scale)
Category rank#2,103
Street price$229
Power1000 W (rated)
Performance per dollar10.58
Released2022

Specifications

BrandCaldera
ModelCaldera PW-1643 Plus
Rated output1,000 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin3×
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
Teralux PW-5736 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,515$109Compare
Caldera PW-2557 Plus 1000W 80 PLUS Gold SFX Power Supply1,670$119Compare
Novexa PW-1479 Core 850W 80 PLUS Platinum ATX 3.0 Power Supply1,902$169Compare
Zephyra PW-1821 XT 1600W 80 PLUS Titanium ATX Power Supply2,943$399Compare
Caldera PW-7121 Pro 850W 80 PLUS Gold SFX Power Supply1,409$89Compare
Novexa PW-2756 Core 550W 80 PLUS Bronze SFX Power Supply800$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1643 Plus 1000W 80 PLUS Platinum ATX 3.0 Power Supply”, https://vextor7.com/item/79483658 (accessed 2026-10-23).