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ARCTIC Liquid Freezer III 420 vs be quiet! Light Loop 360: Comparison
ARCTIC Liquid Freezer III 420 vs be quiet! Light Loop 360: the radiator size difference
Start with radiator size, because it is the widest measured gap between them: ARCTIC Liquid Freezer III 420 420 mm against be quiet! Light Loop 360 360 mm, 14% in favour of ARCTIC Liquid Freezer III 420. Add warranty to that, 6 years on the ARCTIC Liquid Freezer III 420 versus 3 years on the be quiet! Light Loop 360, and the pattern holds. Add max speed to that, 1700 RPM on the ARCTIC Liquid Freezer III 420 versus 2100 RPM on the be quiet! Light Loop 360, and the pattern holds. ARCTIC Liquid Freezer III 420 also leads on airflow, 72.8 CFM on the ARCTIC Liquid Freezer III 420 versus 61.8 CFM on the be quiet! Light Loop 360.
Which should you buy, ARCTIC Liquid Freezer III 420 or be quiet! Light Loop 360?
Take the ARCTIC Liquid Freezer III 420 for buyers who want the largest available Liquid Freezer III radiator without paying Pro-tier ARGB pricing. It is equally the pick for extreme overclocking or high-TDP workstation builds needing roughly 320W of headroom. It is not the one for cases that can't fit a 420mm radiator, which needs a genuinely large chassis. The be quiet! Light Loop 360 suits High-TDP flagship CPUs needing 360mm cooling and RGB-themed cases with front or top radiator mounts, though it is the wrong buy for silence-first builds (see Pure Loop 2 instead) and cases limited to 240mm radiator space. The same goes for showcase builds wanting be quiet! build quality.
Frequently asked questions
Do the ARCTIC Liquid Freezer III 420 and be quiet! Light Loop 360 differ on static pressure?
Yes. Static Pressure reads 2.4 mmH2O on the ARCTIC Liquid Freezer III 420 versus 2.51 mmH2O on the be quiet! Light Loop 360.
Is the Cooler Type the same on the ARCTIC Liquid Freezer III 420 and be quiet! Light Loop 360?
It is. Both are listed at AIO Liquid, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- ARCTIC Liquid Freezer III 420
- ARCTIC
- be quiet! Light Loop 360
- be quiet!
Cooler Type
- ARCTIC Liquid Freezer III 420
- AIO Liquid
- be quiet! Light Loop 360
- AIO Liquid
Radiator Size
- ARCTIC Liquid Freezer III 420
- 420 mmBest
- be quiet! Light Loop 360
- 360 mm-14%
Series
- ARCTIC Liquid Freezer III 420
- ARCTIC Liquid Freezer III 420
- be quiet! Light Loop 360
- be quiet! Light Loop 360
Model Number
- ARCTIC Liquid Freezer III 420
- ACFRE00137A
- be quiet! Light Loop 360
- BW022
Socket Compatibility
- ARCTIC Liquid Freezer III 420
- AMD AM4/AM5, Intel LGA1851/1700
- be quiet! Light Loop 360
- AMD AM4/AM5, Intel LGA1851/1700/1200/115X
Tower Layout
- ARCTIC Liquid Freezer III 420
- Not Applicable
- be quiet! Light Loop 360
- Not Applicable
Fan Count
- ARCTIC Liquid Freezer III 420
- 3
- be quiet! Light Loop 360
- 3
RGB Lighting
- ARCTIC Liquid Freezer III 420
- No
- be quiet! Light Loop 360
- Yes
Cooler Weight
- ARCTIC Liquid Freezer III 420
- 2235 g
- be quiet! Light Loop 360
- 1480 gBest
Radiator Thickness
- ARCTIC Liquid Freezer III 420
- 38 mm
- be quiet! Light Loop 360
- 27 mm
Tube Length
- ARCTIC Liquid Freezer III 420
- 450 mm
- be quiet! Light Loop 360
- 400 mm
Pump Max Speed
- ARCTIC Liquid Freezer III 420
- 2800 RPM
- be quiet! Light Loop 360
- 2900 RPMBest
Fan Size
- ARCTIC Liquid Freezer III 420
- 140 mm
- be quiet! Light Loop 360
- 120 mm
Max Speed
- ARCTIC Liquid Freezer III 420
- 1700 RPM-19%
- be quiet! Light Loop 360
- 2100 RPMBest
Airflow
- ARCTIC Liquid Freezer III 420
- 72.8 CFMBest
- be quiet! Light Loop 360
- 61.8 CFM-15%
Static Pressure
- ARCTIC Liquid Freezer III 420
- 2.4 mmH2O-4%
- be quiet! Light Loop 360
- 2.51 mmH2O
Bearing Type
- ARCTIC Liquid Freezer III 420
- Fluid Dynamic
- be quiet! Light Loop 360
- Rifle
PWM Control
- ARCTIC Liquid Freezer III 420
- Yes
- be quiet! Light Loop 360
- Yes
Lighting
- ARCTIC Liquid Freezer III 420
- None
- be quiet! Light Loop 360
- ARGB
Warranty
- ARCTIC Liquid Freezer III 420
- 6 yearsBest
- be quiet! Light Loop 360
- 3 years-50%
Which one should you pick?
Choose ARCTIC Liquid Freezer III 420 if you want the higher radiator size (420 mm vs 360 mm), the higher fan count (3 vs 3) and the higher airflow (72.8 CFM vs 61.8 CFM).
Choose be quiet! Light Loop 360 if you want the higher max speed (2100 RPM vs 1700 RPM) and the higher static pressure (2.51 mmH2O vs 2.4 mmH2O).
Price comparison
| Retailer | ARCTIC Liquid Freezer III 420 | be quiet! Light Loop 360 |
|---|---|---|
| Amazon | View on Amazon | View on Amazon |
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Verdict
ARCTIC Liquid Freezer III 420
9 / 10 Expert Rating
One of the best value-per-degree AIOs available at any radiator size, now in its largest non-Pro form.
be quiet! Light Loop 360
8 / 10 Expert Rating
be quiet!'s cooling quality with a genuine RGB showcase, a strong pick for builders who want both.




