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Head to head

Air Cooler vs AIO: Which CPU Cooling Setup Should You Choose?

For a straightforward build, an air cooler keeps the setup simple. An AIO can suit a high heat load or case layout that benefits from a radiator; check compatibility first.

A

Simple installation and fewer cooling components

Noctua NH-D15 G2

The verdict

Choose by processor load, socket support, case clearance and noise preference. Neither design suits every PC.

Simple installation and fewer cooling components: Noctua NH-D15 G2

A tower cooler uses a heatsink and fans without an AIO pump, tubing and radiator.

Radiator-based layout for high heat loads: ARCTIC Liquid Freezer III Pro 360

ARCTIC lists a 360 mm radiator, subject to case fit.

Reduced heatsink mass around the motherboard: ARCTIC Liquid Freezer III Pro 360

An AIO places its radiator away from the CPU socket, but still needs a compatible radiator mount.

Compare them side by side

Noctua NH-D15 G2ARCTIC Liquid Freezer III Pro 360Official manufacturer imageARCTIC Liquid Freezer III Pro 360
Heat transferHeatsink and fansCold plate, coolant loop and radiator
Radiator clearanceNot required360 mm radiator mount required
Published dimensions168 × 150 × 152 mm—
PumpNoneIntegrated pump
Socket fitAMD AM5/AM4 and listed Intel socketsCheck current compatibility list
Check price on Amazon UK

Common questions

Questions before you buy

Is an AIO better than an air cooler for a CPU?

It depends on processor load and case design. A suitable tower cooler handles many builds; a larger radiator may suit higher sustained heat loads.

Does an AIO need more space?

It needs a compatible radiator position and room for tubing. An air cooler needs height and motherboard clearance.

Which type is easier to maintain?

An air cooler has fans and a heatsink; an AIO adds a pump and sealed liquid loop. Follow the maker's care guidance.

Can every PC case fit a 360 mm AIO?

No. Check supported radiator positions, thickness clearance and tube routing before purchase.

Sources and how we chose