Hardware Spec Index

Caldera CL-6859 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL6859-ULTRA · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index1,860 (CPU Coolers scale)
Category rank#15,100
Street price$119
Power17 W
Performance per dollar15.63
Released2019

Specifications

BrandCaldera
ModelCaldera CL-6859 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 1,700 RPM
Pump2,800 RPM
Rated cooling330 W (manufacturer rating)
Noise29 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

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Cite this page: Hardware Spec Index, “Caldera CL-6859 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/3102940 (accessed 2026-10-26).