Hardware Spec Index

Zephyra CL-3733 Ultra Single tower Air CPU Cooler

CPU Coolers · Zephyra · SKU CL3733-ULTRA · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index1,558 (CPU Coolers scale)
Category rank#38,925
Street price$79
Power3 W
Performance per dollar19.72
Released2019

Specifications

BrandZephyra
ModelZephyra CL-3733 Ultra
TypeSingle tower air cooler
Heat pipes6× 6 mm copper
Height158 mm
Fans1× 120 mm PWM, up to 1,700 RPM
Rated cooling220 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
Zephyra CL-3542 XT 240mm AIO Liquid CPU Cooler729$19Compare
Zephyra CL-9968 SE 240mm AIO Liquid CPU Cooler708$19Compare
Brontix CL-6322 Ultra Single tower Air CPU Cooler932$29Compare
Caldera CL-9655 Pro 240mm AIO Liquid CPU Cooler1,095$49Compare
Zephyra CL-4761 SE 240mm AIO Liquid CPU Cooler1,014$39Compare
Caldera CL-4515 Core Single tower Air CPU Cooler1,668$89Compare

All CPU Coolers · JSON

Cite this page: Hardware Spec Index, “Zephyra CL-3733 Ultra Single tower Air CPU Cooler”, https://vextor7.com/item/14915352 (accessed 2026-10-24).