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Product comparison · 2 computer cooling systems

ARCTIC Freezer 4U-Altra vs UNYKAch UNYCOOL H21 ARGB

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  • 23specifications compared
  • 19differ
  • 4identical
  • 28known for one product only

Key differences

The ARCTIC Freezer 4U-Altra has 3 cm more fan diameter than the UNYKAch UNYCOOL H21 ARGB (12 cm vs 9 cm). The ARCTIC Freezer 4U-Altra has 35.79 cfm more maximum airflow than the UNYKAch UNYCOOL H21 ARGB (71.9 cfm vs 36.11 cfm). The ARCTIC Freezer 4U-Altra has 2.1 mmH2O more maximum air pressure than the UNYKAch UNYCOOL H21 ARGB (3.3 mmH2O vs 1.2 mmH2O). Bearing type: Dual ball bearing on the ARCTIC Freezer 4U-Altra, Hydraulic on the UNYKAch UNYCOOL H21 ARGB. Product colour: Black on the ARCTIC Freezer 4U-Altra, Black, Grey on the UNYKAch UNYCOOL H21 ARGB.

  • Fan diameter
    • 12 cm
    • 9 cm
  • Maximum airflow
    • 71.9 cfm
    • 36.11 cfm
  • Maximum air pressure
    • 3.3 mmH2O
    • 1.2 mmH2O
  • Bearing type
    • Dual ball bearing
    • Hydraulic
  • Product colour
    • Black
    • Black, Grey
  • Number of fins
    • 57
    • 30
  • Number of heat pipes
    • 8
    • 2
  • Fan connector
    • 4-pin + 4-pin
    • 4-pin

Side by side

Differences highlightedShow differences only
51 specifications
A

ARCTIC

Freezer 4U-AltraView product
B

UNYKAch

UNYCOOL H21 ARGBView product
Performance4 differ
Suitable locationProcessorProcessor
TypeAir coolerAir cooler
Fan diameterDiffers12 cm9 cm
Supported processor socketsKnown for oneLGA 1851, LGA 1700, LGA 1200 (Socket H5), LGA 1150 (Socket H3), LGA 1151 (Socket H4), LGA 1155 (Socket H2), LGA 1156 (Socket H), LGA 1366 (Socket B), LGA 775 (Socket T), Socket AM5, Socket AM4, Socket AM3+, Socket FM2, Socket FM1, Socket AM3, Socket AM2, Socket AM2+
Rotational speed (min)Known for one800 RPM
Rotational speed (max)Known for one2000 RPM
Noise level (high speed)Known for one21.5 dB
Maximum airflowDiffers71.9 cfm36.11 cfm
Maximum air pressureDiffers3.3 mmH2O1.2 mmH2O
Pulse-width modulation (PWM) supportYesYes
Bearing typeDiffersDual ball bearingHydraulic
Mean time between failures (MTBF)Known for one30000 h
Compatible processor seriesKnown for oneAmpere Altra
Noise levelKnown for one0.5 sone
AirflowKnown for one122.16 m³/h
Quantity per packKnown for one1 pc(s)
Fan speed (max)Known for one2300 RPM
Fan speed (min)Known for one400 RPM
Design4 differ
Product colourDiffersBlackBlack, Grey
Number of fan bladesKnown for one7
Number of finsDiffers5730
Number of heat pipesDiffers82
Illumination LEDKnown for oneYes
Illumination colourKnown for oneRed, Green, Blue
Fan connectorDiffers4-pin + 4-pin4-pin
Number of fansKnown for one2 fan(s)
Fins materialKnown for oneAluminium
Power1 differ
Starting voltageDiffers8 V12 V
Thermal Design Power (TDP)Known for one90 W
Power consumption (typical)Known for one2.88 W
Rated voltageKnown for one12 V
Rated currentKnown for one0.12 A
Weight & dimensions9 differ
WidthDiffers124 mm90 mm
DepthDiffers156 mm60 mm
HeightDiffers145 mm125 mm
WeightDiffers1.29 kg210 g
Fan dimensions (W x D x H)Known for one90 x 90 x 25 mm
Cable lengthDiffers0.3 m0.23 m
Package widthDiffers160 mm85 mm
Package depthDiffers211 mm115 mm
Package heightDiffers141 mm145 mm
Package volumeKnown for one1400 cm³
Package weightDiffers1.5 kg290 g
Heat pipes diameterKnown for one6 mm
Technical details1 differ
Compliance certificatesDiffersCE, UKCA, RoHS, REACHRoHS, CE
Warranty periodKnown for one6 year(s)
Packaging contentidentical
Thermal pad includedYesYes
Logistics dataidentical
Master (outer) case widthKnown for one360 mm
Master (outer) case lengthKnown for one595 mm
Master (outer) case heightKnown for one310 mm
Products per master (outer) caseKnown for one60 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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