Hardware Spec Index

Caldera CL-6640 XT Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL6640-XT · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,020 (CPU Coolers scale)
Category rank#15,326
Street price$39
Power3 W
Performance per dollar26.15
Released2025

Specifications

BrandCaldera
ModelCaldera CL-6640 XT
TypeSingle tower air cooler
Heat pipes6× 6 mm copper
Height159 mm
Fans1× 120 mm PWM, up to 2,000 RPM
Rated cooling220 W (manufacturer rating)
Noise27 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/95020484 (accessed 2026-10-20).