Hardware Spec Index

Caldera CL-4647 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL4647-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index805 (CPU Coolers scale)
Category rank#26
Street price$19
Power3 W
Performance per dollar42.37
Released2021

Specifications

BrandCaldera
ModelCaldera CL-4647 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height157 mm
Fans1× 120 mm PWM, up to 1,900 RPM
Rated cooling180 W (manufacturer rating)
Noise33 dBA (max)
RAM clearanceUnrestricted
Socket supportAM4, LGA1700, LGA1200, LGA115x
Warranty6 years

Related guides

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

Similar CPU Coolers

ModelBenchmarkPriceCompare
Teralux CL-8965 Pro 240mm AIO Liquid CPU Cooler1,211$49Compare
Brontix CL-5128 Prime Dual tower Air CPU Cooler2,376$179Compare
Zephyra CL-2637 Plus Dual tower Air CPU Cooler2,167$159Compare
Teralux CL-5255 XT 360mm AIO Liquid CPU Cooler1,697$79Compare
Caldera CL-6866 Core 280mm AIO Liquid CPU Cooler914$29Compare
Brontix CL-4260 Plus 420mm AIO Liquid CPU Cooler2,357$189Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-4647 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/5454953 (accessed 2026-10-20).