Hardware Spec Index

Caldera PW-8639 XT 1300W 80 PLUS Platinum ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW8639-XT · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index2,629 (Power Supplies scale)
Category rank#919
Street price$349
Power1300 W (rated)
Performance per dollar7.53
Released2023

Specifications

BrandCaldera
ModelCaldera PW-8639 XT
Rated output1,300 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-pin4×
Form factorATX
ModularityFully modular
Fan140 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
Vantrel PW-8509 Max 750W 80 PLUS Bronze ATX Power Supply1,032$49Compare
Caldera PW-4405 Core 1000W 80 PLUS Platinum SFX Power Supply2,369$269Compare
Teralux PW-6824 Ti 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,384$249Compare
Caldera PW-2360 XT 1200W 80 PLUS Gold ATX 3.1 Power Supply2,199$189Compare
Zephyra PW-4764 Prime 1000W 80 PLUS Platinum SFX Power Supply2,494$289Compare
Caldera PW-8299 Core 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,691$309Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8639 XT 1300W 80 PLUS Platinum ATX 3.0 Power Supply”, https://vextor7.com/item/53473916 (accessed 2026-10-22).