Hardware Spec Index

Caldera CL-3940 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL3940-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index996 (CPU Coolers scale)
Category rank#32,885
Street price$39
Power3 W
Performance per dollar25.54
Released2019

Specifications

BrandCaldera
ModelCaldera CL-3940 Ultra
TypeSingle tower air cooler
Heat pipes6× 6 mm copper
Height161 mm
Fans1× 120 mm PWM, up to 1,700 RPM
Rated cooling220 W (manufacturer rating)
Noise33 dBA (max)
RAM clearanceUnrestricted
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-3940 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/20035212 (accessed 2026-10-20).