Hardware Spec Index

Brontix CL-6640 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL6640-ULTRA · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index1,857 (CPU Coolers scale)
Category rank#49,103
Street price$139
Power17 W
Performance per dollar13.36
Released2026

Specifications

BrandBrontix
ModelBrontix CL-6640 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 2,000 RPM
Pump3,400 RPM
Rated cooling330 W (manufacturer rating)
Noise34 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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Cite this page: Hardware Spec Index, “Brontix CL-6640 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/5275367 (accessed 2026-10-24).