Hardware Spec Index

Caldera CL-3956 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL3956-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,648 (CPU Coolers scale)
Category rank#4,265
Street price$99
Power3 W
Performance per dollar16.65
Released2021

Specifications

BrandCaldera
ModelCaldera CL-3956 Ultra
TypeSingle tower air cooler
Heat pipes4× 6 mm copper
Height155 mm
Fans1× 120 mm PWM, up to 1,700 RPM
Rated cooling180 W (manufacturer rating)
Noise30 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
Caldera CL-3841 SE 360mm AIO Liquid CPU Cooler1,744$89Compare
Caldera CL-5890 Core Single tower Air CPU Cooler1,609$89Compare
Brontix CL-2336 Pro 360mm AIO Liquid CPU Cooler1,205$49Compare
Brontix CL-2336 SE Single tower Air CPU Cooler1,234$49Compare
Caldera CL-1774 Prime 240mm AIO Liquid CPU Cooler589$19Compare
Caldera CL-6749 SE 240mm AIO Liquid CPU Cooler1,287$59Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-3956 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/98358 (accessed 2026-10-19).