Hardware Spec Index

Caldera PW-6647 Plus 650W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW6647-PLUS · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index1,234 (Power Supplies scale)
Category rank#43,863
Street price$79
Power650 W (rated)
Performance per dollar15.62
Released2020

Specifications

BrandCaldera
ModelCaldera PW-6647 Plus
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan140 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
Caldera PW-5075 Edge 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,535$309Compare
Zephyra PW-4008 Core 1000W 80 PLUS Platinum ATX Power Supply2,052$169Compare
Caldera PW-8231 Ti 850W 80 PLUS Gold ATX 3.1 Power Supply1,722$139Compare
Vantrel PW-7243 SE 1000W 80 PLUS Titanium ATX 3.1 Power Supply2,290$249Compare
Caldera PW-2337 Prime 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,628$339Compare
Novexa PW-3395 Ti 850W 80 PLUS Gold SFX Power Supply1,999$179Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6647 Plus 650W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/95031061 (accessed 2026-10-24).