Cooler Master Cosmos II 25th Anniversary Edition Review

Written by Antony Leather

May 23, 2017 | 13:58

Tags: #atx-case #cosmos

Companies: #cooler-master

Cooling Performance

For cases capable of housing ATX or larger motherboards, we use our standard ATX case test kit, which includes:

Cooler Master Cosmos II 25th Anniversary Edition Review Cooler Master Cosmos II 25th Anniversary Edition Review - Cooling Performance

We disable the motherboard's onboard CPU fan control and all CPU power management features. The CPU fan is fixed at 7V with an adaptor while the graphics card fan is locked at 70 percent speed using MSI Afterburner. The system is loaded using Prime95 25.11 and Unigine's Heaven 4.0 benchmark. We use Core Temp and GPU-Z to monitor the temperatures, taking the maximum values after 15 minutes - enough time for the readings to plateau.

Case Performance - CPU Delta T

Difference over ambient

  • Lian Li PC-D888 (8 x 120mm fans; max speed)
  • NZXT Noctis 450 ROG
  • Phanteks Enthoo Luxe Tempered Glass
  • Cooler Master Cosmos II 25th Anniversary Edition (max speed)
  • In Win 509 (140mm rear fan)
  • SilverStone Primera PM01
  • Thermaltake Tower 900
  • Phanteks Enthoo Pro M Tempered Glass
  • SilverStone Raven RVX01
  • Cooler Master Cosmos II 25th Anniversary Edition (med speed)
  • Be Quiet! Pure Base 600 (max speed; ventilated)
  • Cooler Master MasterCase Pro 6 (ventilated)
  • Corsair Crystal Series 570X RGB
  • NZXT S340 Elite
  • BitFenix Aurora
  • Cooler Master MasterCase Pro 5
  • Lian Li PC-D888 (8 x 120mm fans; min speed)
  • Cooler Master Cosmos II 25th Anniversary Edition (min speed)
  • Be Quiet! Dark Base Pro 900 (inverted ATX)
  • Cooler Master MasterCase Maker 5t (max speed; ventilated)
  • Corsair Crystal Series 460X RGB
  • In Win 303
  • Nanoxia Project S
  • Cooler Master MasterCase Maker 5t (max speed)
  • Cooler Master MasterCase Maker 5t (min speed)
  • Cooler Master MasterCase Pro 6
  • Corsair Carbide Series 270R
  • No case - open test bench
  • Be Quiet! Pure Base 600 (max speed)
  • Cooler Master MasterBox 5t (max speed)
  • Corsair Carbide Series 600C (max speed)
  • Nanoxia CoolForce 1 (max speed)
  • Aerocool DS 230
  • Be Quiet! Dark Base Pro 900 (max speed)
  • Be Quiet! Pure Base 600 (med speed)
  • Be Quiet! Silent Base 600 (max speed)
  • Corsair Carbide Series 400C
  • Corsair Carbide Series 600C (med speed)
  • Corsair Carbide Series 600C (min speed)
  • In Win 805
  • Nanoxia CoolForce 1 (med speed)
  • Be Quiet! Dark Base Pro 900 (min speed)
  • BitFenix Pandora ATX
  • Cooler Master MasterBox 5t (min speed)
  • Nanoxia CoolForce 1 (min speed)
  • Phanteks Eclipse P400S (max speed)
  • Be Quiet! Silent Base 600 (med speed)
  • BitFenix Nova
  • Be Quiet! Pure Base 600 (min speed)
  • In Win 509 (stock - no fans)
  • Be Quiet! Silent Base 600 (min speed)
  • Corsair Carbide Series Spec-04
  • Phanteks Eclipse P400S (med speed)
  • Lian Li PC-D888
  • Phanteks Eclipse P400S (min speed)
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0
10
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40
50
60
70
°C (lower is better)
  • CPU delta T

Case Performance - GPU Delta T

Difference over ambient

  • Cooler Master MasterCase Maker 5t (max speed; ventilated)
  • Cooler Master MasterCase Pro 6 (ventilated)
  • Lian Li PC-D888 (8 x 120mm fans; max speed)
  • NZXT Noctis 450 ROG
  • Phanteks Enthoo Pro M Tempered Glass
  • SilverStone Primera PM01
  • Cooler Master Cosmos II 25th Anniversary Edition (max speed)
  • Cooler Master MasterCase Maker 5t (max speed)
  • Cooler Master MasterCase Pro 5
  • Cooler Master MasterCase Pro 6
  • Nanoxia CoolForce 1 (max speed)
  • No case - open test bench
  • NZXT S340 Elite
  • Be Quiet! Pure Base 600 (max speed; ventilated)
  • Be Quiet! Pure Base 600 (max speed)
  • Cooler Master MasterCase Maker 5t (min speed)
  • Corsair Carbide Series 600C (max speed)
  • Nanoxia CoolForce 1 (med speed)
  • Phanteks Enthoo Luxe Tempered Glass
  • SilverStone Raven RVX01
  • Cooler Master Cosmos II 25th Anniversary Edition (med speed)
  • Be Quiet! Pure Base 600 (med speed)
  • Corsair Carbide Series 270R
  • In Win 303
  • Corsair Carbide Series 600C (med speed)
  • Lian Li PC-D888 (8 x 120mm fans; min speed)
  • Lian Li PC-D888
  • Cooler Master Cosmos II 25th Anniversary Edition (min speed)
  • Nanoxia CoolForce 1 (min speed)
  • Phanteks Eclipse P400S (max speed)
  • Thermaltake Tower 900
  • Be Quiet! Dark Base Pro 900 (inverted ATX)
  • Corsair Carbide Series 600C (min speed)
  • Corsair Crystal Series 570X RGB
  • In Win 509 (140mm rear fan)
  • Be Quiet! Dark Base Pro 900 (max speed)
  • Be Quiet! Pure Base 600 (min speed)
  • Be Quiet! Silent Base 600 (max speed)
  • Cooler Master MasterBox 5t (max speed)
  • Cooler Master MasterBox 5t (min speed)
  • In Win 509 (stock - no fans)
  • Be Quiet! Dark Base Pro 900 (min speed)
  • Be Quiet! Silent Base 600 (med speed)
  • BitFenix Aurora
  • BitFenix Pandora ATX
  • Corsair Carbide Series 400C
  • In Win 805
  • Corsair Carbide Series Spec-04
  • Corsair Crystal Series 460X RGB
  • Aerocool DS 230
  • Nanoxia Project S
  • Phanteks Eclipse P400S (med speed)
  • Be Quiet! Silent Base 600 (min speed)
  • BitFenix Nova
  • Phanteks Eclipse P400S (min speed)
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0
10
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50
60
°C (lower is better)
  • GPU delta T

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