Hardware Spec Index

Caldera CL-7640 Core 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL7640-CORE · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index2,030 (CPU Coolers scale)
Category rank#3,669
Street price$159
Power17 W
Performance per dollar12.77
Released2020

Specifications

BrandCaldera
ModelCaldera CL-7640 Core
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 38 mm thick
Fans3× 140 mm, up to 2,300 RPM
Pump3,200 RPM
Rated cooling330 W (manufacturer rating)
Noise33 dBA (max)
Tubing400 mm, sleeved EPDM
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty5 years

Related guides

AIO Liquid Cooling vs Air Cooling for CPUsCPU TDP, PPT and Turbo Power Explained

Similar CPU Coolers

ModelBenchmarkPriceCompare
Brontix CL-9504 Prime Low profile Air CPU Cooler794$19Compare
Brontix CL-4311 Edge Single tower Air CPU Cooler610$19Compare
Zephyra CL-8851 XT 280mm AIO Liquid CPU Cooler920$29Compare
Caldera CL-5120 Ultra Low profile Air CPU Cooler1,129$39Compare
Caldera CL-1172 Core 240mm AIO Liquid CPU Cooler774$19Compare
Zephyra CL-6991 Max 280mm AIO Liquid CPU Cooler1,166$49Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-7640 Core 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/18893299 (accessed 2026-10-26).