Hardware Spec Index

Caldera CL-3688 Ultra Dual tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL3688-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index1,241 (CPU Coolers scale)
Category rank#17,358
Street price$59
Power6 W
Performance per dollar21.03
Released2020

Specifications

BrandCaldera
ModelCaldera CL-3688 Ultra
TypeDual tower air cooler
Heat pipes7× 6 mm copper
Height163 mm
Fans2× 120 mm PWM, up to 2,200 RPM
Rated cooling260 W (manufacturer rating)
Noise27 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-3688 Ultra Dual tower Air CPU Cooler”, https://vextor7.com/item/1751717 (accessed 2026-10-19).