Hardware Spec Index

Caldera CL-8421 Ultra Dual tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL8421-ULTRA · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index1,982 (CPU Coolers scale)
Category rank#7,458
Street price$129
Power6 W
Performance per dollar15.36
Released2024

Specifications

BrandCaldera
ModelCaldera CL-8421 Ultra
TypeDual tower air cooler
Heat pipes7× 6 mm copper
Height163 mm
Fans2× 120 mm PWM, up to 1,900 RPM
Rated cooling260 W (manufacturer rating)
Noise33 dBA (max)
RAM clearanceOffset fin stack, 45 mm
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-8421 Ultra Dual tower Air CPU Cooler”, https://vextor7.com/item/3351100 (accessed 2026-10-21).