Hardware Spec Index

Zephyra CL-6666 Prime 420mm AIO Liquid CPU Cooler

CPU Coolers · Zephyra · SKU CL6666-PRIME · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index2,480 (CPU Coolers scale)
Category rank#1,044
Street price$179
Power17 W
Performance per dollar13.85
Released2022

Specifications

BrandZephyra
ModelZephyra CL-6666 Prime
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 1,500 RPM
Pump2,900 RPM
Rated cooling330 W (manufacturer rating)
Noise29 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM5, AM4, LGA1851, LGA1700
Warranty5 years

Related guides

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

Similar CPU Coolers

ModelBenchmarkPriceCompare
Teralux CL-2435 Pro 240mm AIO Liquid CPU Cooler655$19Compare
Caldera CL-1932 Edge 420mm AIO Liquid CPU Cooler2,102$149Compare
Caldera CL-3817 Plus Single tower Air CPU Cooler1,865$99Compare
Zephyra CL-2474 Core 420mm AIO Liquid CPU Cooler2,195$149Compare
Zephyra CL-3782 Max Dual tower Air CPU Cooler1,972$119Compare
Zephyra CL-4736 Max Dual tower Air CPU Cooler2,151$149Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-6666 Prime 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/584336 (accessed 2026-10-20).