Hardware Spec Index

Caldera CL-9643 Ultra Dual tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL9643-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index1,992 (CPU Coolers scale)
Category rank#12,076
Street price$159
Power6 W
Performance per dollar12.53
Released2020

Specifications

BrandCaldera
ModelCaldera CL-9643 Ultra
TypeDual tower air cooler
Heat pipes7× 6 mm copper
Height163 mm
Fans2× 120 mm PWM, up to 1,500 RPM
Rated cooling260 W (manufacturer rating)
Noise29 dBA (max)
RAM clearanceOffset fin stack, 45 mm
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-9643 Ultra Dual tower Air CPU Cooler”, https://vextor7.com/item/6844710 (accessed 2026-10-25).