Hardware Spec Index

Caldera CL-6403 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL6403-ULTRA · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index880 (CPU Coolers scale)
Category rank#15,591
Street price$29
Power3 W
Performance per dollar30.34
Released2022

Specifications

BrandCaldera
ModelCaldera CL-6403 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height157 mm
Fans1× 120 mm PWM, up to 1,800 RPM
Rated cooling180 W (manufacturer rating)
Noise25 dBA (max)
RAM clearanceUnrestricted
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-6403 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/6943074 (accessed 2026-10-25).