Hardware Spec Index

Caldera CL-6640 XT Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL6640-XT · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index1,194 (CPU Coolers scale)
Category rank#22,333
Street price$39
Power3 W
Performance per dollar30.62
Released2022

Specifications

BrandCaldera
ModelCaldera CL-6640 XT
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height156 mm
Fans1× 120 mm PWM, up to 2,100 RPM
Rated cooling180 W (manufacturer rating)
Noise30 dBA (max)
RAM clearanceUnrestricted
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

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Cite this page: Hardware Spec Index, “Caldera CL-6640 XT Single tower Air CPU Cooler”, https://vextor7.com/item/17080924 (accessed 2026-10-21).