Hardware Spec Index

Caldera CL-3891 Ultra Low profile Air CPU Cooler

CPU Coolers · Caldera · SKU CL3891-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index807 (CPU Coolers scale)
Category rank#45,796
Street price$19
Power3 W
Performance per dollar42.47
Released2021

Specifications

BrandCaldera
ModelCaldera CL-3891 Ultra
TypeLow profile air cooler
Heat pipes4× 6 mm copper
Height49 mm
Fans1× 92 mm PWM, up to 2,000 RPM
Rated cooling95 W (manufacturer rating)
Noise29 dBA (max)
RAM clearanceUnrestricted
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-3891 Ultra Low profile Air CPU Cooler”, https://vextor7.com/item/4611779 (accessed 2026-10-24).