Hardware Spec Index

Caldera CL-6855 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL6855-ULTRA · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index852 (CPU Coolers scale)
Category rank#2,167
Street price$29
Power3 W
Performance per dollar29.38
Released2023

Specifications

BrandCaldera
ModelCaldera CL-6855 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height155 mm
Fans1× 120 mm PWM, up to 2,000 RPM
Rated cooling180 W (manufacturer rating)
Noise33 dBA (max)
RAM clearanceUnrestricted
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
Zephyra CL-3514 Ti 240mm AIO Liquid CPU Cooler1,046$39Compare
Brontix CL-3715 Prime Single tower Air CPU Cooler523$19Compare
Zephyra CL-2897 Plus 360mm AIO Liquid CPU Cooler1,506$79Compare
Caldera CL-4617 SE Dual tower Air CPU Cooler1,514$79Compare
Teralux CL-7470 Ultra 360mm AIO Liquid CPU Cooler1,993$119Compare
Zephyra CL-2776 Ti Dual tower Air CPU Cooler2,480$189Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-6855 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/1710201 (accessed 2026-10-24).