Hardware Spec Index

Caldera CL-8403 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL8403-PRIME · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index2,279 (CPU Coolers scale)
Category rank#22,933
Street price$179
Power17 W
Performance per dollar12.73
Released2020

Specifications

BrandCaldera
ModelCaldera CL-8403 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 2,100 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise27 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-8403 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/1890198 (accessed 2026-10-25).