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Arctic Liquid Freezer III Pro 420 A-RGB vs be quiet! Light Loop 360: Comparison

What is the difference between Arctic Liquid Freezer III Pro 420 A-RGB and be quiet! Light Loop 360?

The gap that matters here is radiator size: Arctic Liquid Freezer III Pro 420 A-RGB 420 mm against be quiet! Light Loop 360 360 mm, which puts Arctic Liquid Freezer III Pro 420 A-RGB 14% ahead. Arctic Liquid Freezer III Pro 420 A-RGB also leads on airflow, 110 CFM on the Arctic Liquid Freezer III Pro 420 A-RGB versus 61.8 CFM on the be quiet! Light Loop 360.

Which should you buy, Arctic Liquid Freezer III Pro 420 A-RGB or be quiet! Light Loop 360?

Take the Arctic Liquid Freezer III Pro 420 A-RGB for the most demanding sustained workloads: Threadripper, flagship 16-core-plus CPUs under heavy all-core load, or extreme overclocking. This is specifically the tier where a 420mm radiator's extra surface area genuinely matters over a 360mm unit. It is equally the pick for buyers with a case specifically built or verified to fit a 420mm radiator. This is a hard requirement, not a minor consideration; confirm clearance before purchase. It is the wrong buy for the majority of builds, even high-end gaming ones. The Arctic Liquid Freezer III Pro 360 ARGB, covered elsewhere on this site, already covers flagship gaming CPUs comfortably at a more universally case-compatible size. Buy the be quiet! Light Loop 360 for 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. It also earns its place with showcase builds wanting be quiet! build quality.

Frequently asked questions

Do the Arctic Liquid Freezer III Pro 420 A-RGB and be quiet! Light Loop 360 differ on static pressure?

Yes. Static Pressure reads 5.2 mmH2O on the Arctic Liquid Freezer III Pro 420 A-RGB versus 2.51 mmH2O on the be quiet! Light Loop 360.

Is the Cooler Type the same on the Arctic Liquid Freezer III Pro 420 A-RGB 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 Pro 420 A-RGB
    Arctic
    be quiet! Light Loop 360
    be quiet!
  • Cooler Type

    Arctic Liquid Freezer III Pro 420 A-RGB
    AIO Liquid
    be quiet! Light Loop 360
    AIO Liquid
  • Radiator Size

    Arctic Liquid Freezer III Pro 420 A-RGB
    420 mmBest
    be quiet! Light Loop 360
    360 mm-14%
  • Series

    Arctic Liquid Freezer III Pro 420 A-RGB
    Arctic Liquid Freezer III Pro 420 A-RGB
    be quiet! Light Loop 360
    be quiet! Light Loop 360
  • Model Number

    Arctic Liquid Freezer III Pro 420 A-RGB
    ACFRE00185A
    be quiet! Light Loop 360
    BW022
  • Socket Compatibility

    Arctic Liquid Freezer III Pro 420 A-RGB
    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 Pro 420 A-RGB
    Not Applicable
    be quiet! Light Loop 360
    Not Applicable
  • Fan Count

    Arctic Liquid Freezer III Pro 420 A-RGB
    3
    be quiet! Light Loop 360
    3
  • RGB Lighting

    Arctic Liquid Freezer III Pro 420 A-RGB
    Yes
    be quiet! Light Loop 360
    Yes
  • Cooler Weight

    Arctic Liquid Freezer III Pro 420 A-RGB
    2358 g
    be quiet! Light Loop 360
    1480 gBest
  • Radiator Thickness

    Arctic Liquid Freezer III Pro 420 A-RGB
    38 mm
    be quiet! Light Loop 360
    27 mm
  • Tube Length

    Arctic Liquid Freezer III Pro 420 A-RGB
    500 mm
    be quiet! Light Loop 360
    400 mm
  • Pump Max Speed

    Arctic Liquid Freezer III Pro 420 A-RGB
    2800 RPM
    be quiet! Light Loop 360
    2900 RPMBest
  • Fan Size

    Arctic Liquid Freezer III Pro 420 A-RGB
    140 mm
    be quiet! Light Loop 360
    120 mm
  • Max Speed

    Arctic Liquid Freezer III Pro 420 A-RGB
    2500 RPMBest
    be quiet! Light Loop 360
    2100 RPM-16%
  • Airflow

    Arctic Liquid Freezer III Pro 420 A-RGB
    110 CFMBest
    be quiet! Light Loop 360
    61.8 CFM-44%
  • Static Pressure

    Arctic Liquid Freezer III Pro 420 A-RGB
    5.2 mmH2O
    be quiet! Light Loop 360
    2.51 mmH2O-52%
  • Bearing Type

    Arctic Liquid Freezer III Pro 420 A-RGB
    Fluid Dynamic
    be quiet! Light Loop 360
    Rifle
  • PWM Control

    Arctic Liquid Freezer III Pro 420 A-RGB
    Yes
    be quiet! Light Loop 360
    Yes
  • Lighting

    Arctic Liquid Freezer III Pro 420 A-RGB
    ARGB
    be quiet! Light Loop 360
    ARGB
  • Warranty

    Arctic Liquid Freezer III Pro 420 A-RGB
    6 yearsBest
    be quiet! Light Loop 360
    3 years-50%

    Which one should you pick?

    Choose Arctic Liquid Freezer III Pro 420 A-RGB if you want the higher radiator size (420 mm vs 360 mm), the higher fan count (3 vs 3) and the higher max speed (2500 RPM vs 2100 RPM).

    Choose be quiet! Light Loop 360 if you already have it on hand or find it at a lower price.

    Price comparison

    RetailerArctic Liquid Freezer III Pro 420 A-RGBbe quiet! Light Loop 360
    AmazonView on AmazonView on Amazon
    Best BuyView on Best Buy

    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

    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.

    More comparisons in CPU Coolers