Hardware Spec Index

Brontix CL-6646 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Brontix · SKU CL6646-ULTRA · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index2,480 (CPU Coolers scale)
Category rank#10,222
Street price$199
Power17 W
Performance per dollar12.46
Released2022

Specifications

BrandBrontix
ModelBrontix CL-6646 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,100 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise36 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty6 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power ExplainedAMD AM5 Socket

Similar CPU Coolers

ModelBenchmarkPriceCompare
Caldera CL-9618 Edge Dual tower Air CPU Cooler1,530$69Compare
Teralux CL-1326 Prime Single tower Air CPU Cooler799$29Compare
Zephyra CL-6265 Pro 240mm AIO Liquid CPU Cooler522$19Compare
Brontix CL-7638 Prime 360mm AIO Liquid CPU Cooler1,701$89Compare
Zephyra CL-8753 Edge Dual tower Air CPU Cooler2,353$189Compare
Zephyra CL-6449 Max 280mm AIO Liquid CPU Cooler1,119$39Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Brontix CL-6646 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/31491130 (accessed 2026-10-25).