Hardware Spec Index

Caldera CL-6661 Ultra Dual tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL6661-ULTRA · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index2,097 (CPU Coolers scale)
Category rank#39,678
Street price$159
Power6 W
Performance per dollar13.19
Released2022

Specifications

BrandCaldera
ModelCaldera CL-6661 Ultra
TypeDual tower air cooler
Heat pipes8× 6 mm copper
Height167 mm
Fans2× 120 mm PWM, up to 1,800 RPM
Rated cooling280 W (manufacturer rating)
Noise31 dBA (max)
RAM clearanceOffset fin stack, 45 mm
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-9466 Core Single tower Air CPU Cooler1,158$49Compare
Brontix CL-1262 Ultra 360mm AIO Liquid CPU Cooler1,978$129Compare
Brontix CL-9310 Ultra Dual tower Air CPU Cooler2,075$159Compare
Zephyra CL-2208 XT Single tower Air CPU Cooler1,713$109Compare
Caldera CL-7518 Core 360mm AIO Liquid CPU Cooler1,708$89Compare
Brontix CL-9593 Ti 360mm AIO Liquid CPU Cooler1,241$49Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-6661 Ultra Dual tower Air CPU Cooler”, https://vextor7.com/item/7570852 (accessed 2026-10-22).