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Deal.ai › Compare

Noctua NH-U12S redux vs Arctic Liquid Freezer III 240

The Noctua NH-U12S redux is the safer buy for most people: a simple air tower that cools well, runs quietly and has no pump to fail. The ARCTIC Liquid Freezer III 240 handles higher heat loads and sustained all-core work better, and its fans and pump are controllable over a wide range. Reviewers and owners praise Noctua's mounting and long-term support; ARCTIC's AIO is well regarded for value but adds pump noise and a finite lifespan part.

  • Choose the Noctua NH-U12S redux if you want quiet, maintenance-free cooling for a mainstream CPU and a cooler that can outlast several builds.
  • Choose the ARCTIC Liquid Freezer III 240 if you run a high-wattage CPU under sustained load and have room in your case for a 240mm radiator.

Prices

  • Noctua NH-U12S redux: $61.68 at anafrashop.com (last seen Nov 13)
  • Arctic Liquid Freezer III 240: $100.00 at Whatnot (last seen Nov 13)
  • Difference: the Noctua NH-U12S redux is $38.32 cheaper than the Arctic Liquid Freezer III 240 at the latest prices (Nov 13)
Noctua
Noctua NH-U12S redux CPU Cooler

Noctua NH-U12S redux

Noctua NH-U12S redux CPU Cooler

$61.68at anafrashop.comChecked Nov 13
See all prices and details
Visit anafrashop.com
Pros
  • Quiet at 22.1 dB with no pump noise
  • No pump to fail; one fan is the only moving part
  • Light 755 g and simple install
  • Noctua mounting and long-term support are well regarded
Cons
  • Less headroom on very high-wattage CPUs
  • 158mm height limits some slim cases
  • Brown color is polarizing
  • Single fan leaves less airflow tuning range
ARCTIC
ARCTIC Liquid Freezer III 240 AIO CPU Cooler

Arctic Liquid Freezer III 240

ARCTIC Liquid Freezer III 240 AIO CPU Cooler

5(5 ratings)
$100.00at WhatnotChecked Nov 13
See all prices and details
Visit Whatnot
Pros
  • Better sustained cooling for power-hungry CPUs
  • Wide 200-1800 RPM fan range and PWM pump control
  • Compact pump block clears memory
  • Fluid dynamic fan bearings for long fan life
Cons
  • Pump adds noise and a wear item
  • Needs 240mm radiator space and tube routing
  • Heavier at 1490 g
  • More install steps than an air tower

What separates them

Noctua NH-U12S reduxArctic Liquid Freezer III 240
Cooling typeAir tower with 5 heatpipes and one 120mm fan240mm AIO with pump, radiator and two 120mm fans
Sustained heavy loadGood for mainstream chips, saturates sooner on high-wattage CPUsRadiator handles long all-core runs with more headroom
Noise character22.1 dB max, low hum, no pump22.5 dBA fans plus pump whine up to 2800 RPM
Moving parts and lifespanOne fan; no pump to wear outPump and two fans; pump is the wear item
Case fit158mm tall, needs 125mm width clearance, no radiator spaceNeeds 240mm radiator mounts and 450mm tube routing
Weight on the board755 g1490 g
Fan control range1500 RPM max, 1200 RPM low-noise mode200 to 1800 RPM, wider range
Memory clearanceSlim 45mm fin depth helps, but check tall RAMPump block is compact; radiator clears RAM

Price history

  • Noctua NH-U12S redux: lowest $59.95 on Nov 13 at Amazon.
  • Arctic Liquid Freezer III 240: lowest $100.00 on Nov 13 at Whatnot.

Prices at every store

Noctua NH-U12S redux

  • Quiet PCNew

    In stock

    $77.12+ $42.99 shippingChecked Nov 13
    Visit Quiet PC
  • anafrashop.comNew

    Availability unknown

    $61.68Checked Nov 13
    Visit anafrashop.com
  • SabrePC.comNew

    Availability unknown

    $68.07Checked Nov 13
    Visit SabrePC.com
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $74.95Free shippingChecked Nov 13
    Visit Amazon

Store links may earn us a commission.

All 8 stores and price history →

Arctic Liquid Freezer III 240

  • Newegg.comNew

    In stockSold by SparkNest

    $179.27Free shippingChecked Nov 13
    Visit Newegg.com
  • Compu DevicesNew

    In stock

    $213.33Free shippingChecked Nov 13
    Visit Compu Devices
  • WhatnotNew

    Availability unknown

    $100.00+ $8.35 shippingChecked Nov 13
    Visit Whatnot
  • WalmartNew

    Out of stockSold by Altius TechnologiesReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $134.52Checked Nov 13
    Visit Walmart
All 4 stores and price history →

Specs compared

SpecNoctua NH-U12S reduxArctic Liquid Freezer III 240
Fan size120mm120mm
Weight755 g1490 g
ColorBrownBlack
Fan Diameter120 mm fan diameter120 mm fan diameter
Height158mm—
Width with fan125mm—
Fin depth45mm—
Max fan speed1500rpm—
Low-noise fan speed1200rpm—
Fan connector4-pin PWM—
Number of heatpipes5—
Heatpipe diameter6 mm—
Show all 26 specsShow fewer specs
SpecNoctua NH-U12S reduxArctic Liquid Freezer III 240
Max noise level22.10 dB—
Airflow93.40 m³/h—
Noise Level22.4 dB—
Fan noise—22.5 dBA
Fan system—2 x 120mm Fans
Fan speed—200 RPM to 1800 RPM
Fan airflow—56.3 CFM
Fan max air pressure—2.20mm-H2O
Fan bearing—Fluid Dynamic Bearings
Water pump speed

What reviewers say

Noctua NH-U12S redux

Owners of the redux line generally praise the quiet fan, simple install and Noctua mounting, and treat it as a sensible value air cooler. Criticism centers on the stripped accessory bundle and the fact that it is a single-fan, single-tower design.

What people mention
  • NoisePraisedOwners say the 120mm fan stays quiet at idle and moderate loads and is tolerable at full speed.
  • InstallationPraisedBuyers describe the Noctua mounting as clear and easy to fit.
  • AccessoriesCriticisedReviewers note the redux bundle is leaner than the standard NH-U12S, with no second fan bracket.
  • Cooling capacityMixedIt handles mainstream CPUs well, but owners say a single tower and fan leave less headroom for very hot chips.

Arctic Liquid Freezer III 240

Owners and reviewers rate the Liquid Freezer III 240 as one of the better-value 240 mm AIOs, praising its cooling for the size and the VRM fan. Complaints center on the pump fan's noise and on mounting clearance in smaller cases.

What people mention
  • CoolingPraisedOwners say it keeps mid-range CPUs cool under sustained load for a 240 mm unit.
  • VRM fanMixedReviewers like the extra motherboard cooling but some find the small fan audible.
  • NoisePraisedThe 120 mm fans are described as quiet at low and moderate speeds.
  • ClearanceCriticisedSome builders report the radiator and fan stack is tight in compact cases.

Questions and answers

Which is better for a high-wattage CPU under long loads?
The ARCTIC Liquid Freezer III 240. Its 240mm radiator sheds sustained heat better than the NH-U12S redux, which is built for mainstream loads.
Which lasts longer?
The Noctua. It has one fan and no pump. The ARCTIC's pump is the part most likely to wear out first.
Which is quieter?
The Noctua at 22.1 dB with no pump. The ARCTIC's fans are close at 22.5 dBA, but the pump adds noise, especially near 2800 RPM.
Will the Noctua fit my case?
Check for 158mm cooler height and about 125mm width. It needs no radiator mounts, so it fits more cases than the ARCTIC.
Is the ARCTIC worth stepping up to?
Only if you run a high-wattage CPU under sustained load and have 240mm radiator space. For mainstream chips the Noctua is enough.
Which is easier to install?
The Noctua. It mounts to the board with a backplate and one fan. The ARCTIC needs radiator mounting, tube routing and pump wiring.

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—
800 - 2800 RPM
Radiator size—240mm
Radiator material—Aluminum
Tube length—450mm
size—240 mm