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Product comparison · 2 power supply units

be quiet! System Power 11 450W vs be quiet! System Power 11 550W

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  • 60specifications compared
  • 10differ
  • 50identical
  • 2known for one product only

Key differences

The be quiet! System Power 11 550W has 100 W more total power than the be quiet! System Power 11 450W (550 W vs 450 W). The be quiet! System Power 11 550W has 10 W more combined power (+3.3V) than the be quiet! System Power 11 450W (120 W vs 110 W). The be quiet! System Power 11 550W has 100 W more combined power (+12V) than the be quiet! System Power 11 450W (550 W vs 450 W).

  • Total power
    • 450 W
    • 550 W
  • Combined power (+3.3V)
    • 110 W
    • 120 W
  • Combined power (+12V)
    • 450 W
    • 550 W
  • Combined power (+5V)
    • 110 W
    • 120 W
  • Max output current (+12V1)
    • 37.5 A
    • 45.83 A
  • Efficiency
    • 89%
    • 89.7%
  • Noise level
    • 19.1 dB
    • 24.2 dB
  • Weight
    • 1.7 kg
    • 1.92 kg

Side by side

Differences highlightedShow differences only
62 specifications
A

be quiet!

System Power 11 450WView product
B

be quiet!

System Power 11 550WView product
Power6 differ
Total powerDiffers450 W550 W
Combined power (+3.3V)Differs110 W120 W
Combined power (+12V)Differs450 W550 W
Combined power (+5V)Differs110 W120 W
Max output current (+12V1)Differs37.5 A45.83 A
EfficiencyDiffers89%89.7%
Ports & interfacesidentical
PCI Express power connectors (12-pin)Known for one1
CPU P4 connector (4-pin)Known for one1
Performance1 differ
Noise levelDiffers19.1 dB24.2 dB
Weight & dimensions1 differ
WeightDiffers1.7 kg1.92 kg
Packaging data1 differ
Package weightDiffers2.1 kg2.3 kg
Logistics data1 differ
Shipping (inner) case gross weightDiffers13.6 kg14.9 kg

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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