Hardware Spec Index

Caldera CL-6651 Ultra Single tower Air CPU Cooler

CPU Coolers · Caldera · SKU CL6651-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index959 (CPU Coolers scale)
Category rank#47,362
Street price$29
Power3 W
Performance per dollar33.07
Released2021

Specifications

BrandCaldera
ModelCaldera CL-6651 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)
Noise32 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
Zephyra CL-9158 Pro 240mm AIO Liquid CPU Cooler566$19Compare
Brontix CL-1257 Max 240mm AIO Liquid CPU Cooler1,124$39Compare
Zephyra CL-8499 XT Single tower Air CPU Cooler1,108$39Compare
Teralux CL-5231 Edge Single tower Air CPU Cooler1,036$39Compare
Zephyra CL-7664 Ultra 240mm AIO Liquid CPU Cooler771$19Compare
Zephyra CL-6085 Pro Single tower Air CPU Cooler1,633$99Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Caldera CL-6651 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/53474923 (accessed 2026-10-22).