Hardware Spec Index

Caldera CL-1955 Ultra 420mm AIO Liquid CPU Cooler

CPU Coolers · Caldera · SKU CL1955-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index2,191 (CPU Coolers scale)
Category rank#6,793
Street price$179
Power17 W
Performance per dollar12.24
Released2021

Specifications

BrandCaldera
ModelCaldera CL-1955 Ultra
TypeAll-in-one liquid cooler
Radiator420 mm, aluminum, 27 mm thick
Fans3× 140 mm, up to 2,200 RPM
Pump2,800 RPM
Rated cooling330 W (manufacturer rating)
Noise30 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
Zephyra CL-5263 Edge Low profile Air CPU Cooler851$29Compare
Teralux CL-7742 Ultra 280mm AIO Liquid CPU Cooler1,043$39Compare
Caldera CL-9203 Prime 360mm AIO Liquid CPU Cooler1,908$119Compare
Zephyra CL-7535 Edge Single tower Air CPU Cooler1,067$39Compare
Zephyra CL-6057 Plus Dual tower Air CPU Cooler1,717$99Compare
Teralux CL-6364 Max Single tower Air CPU Cooler1,717$99Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-1955 Ultra 420mm AIO Liquid CPU Cooler”, https://vextor7.com/item/31669865 (accessed 2026-10-24).