Hardware Spec Index

Caldera CL-1646 Ultra Dual tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL1646-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index1,915 (CPU Coolers scale)
Category rank#25,842
Street price$129
Power6 W
Performance per dollar14.84
Released2021

Specifications

BrandCaldera
ModelCaldera CL-1646 Ultra
TypeDual tower air cooler
Heat pipes8× 6 mm copper
Height165 mm
Fans2× 120 mm PWM, up to 1,900 RPM
Rated cooling280 W (manufacturer rating)
Noise26 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-1646 Ultra Dual tower Air CPU Cooler”, https://vextor7.com/item/2199659 (accessed 2026-10-21).