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Product comparison · 2 power supply units

be quiet! Dark Power Pro 11 vs be quiet! System Power 8

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  • 40specifications compared
  • 26differ
  • 14identical
  • 26known for one product only

Key differences

  • Total power
    • 1000 W
    • 500 W
  • AC input voltage
    • 100 - 240 V
    • 200 - 240 V
  • AC input frequency
    • 50 - 60 Hz
    • 50 Hz
  • Input current
    • 14 A
    • 4 A
  • Power factor
    • 0.99
    • 0.98
  • Combined power (+3.3V)
    • 25 W
    • 110 W
  • Combined power (+5V)
    • 25 W
    • 110 W
  • Combined power (-12V)
    • 0.5 W
    • 3.6 W

Side by side

Differences highlightedShow differences only
66 specifications
A

be quiet!

Dark Power Pro 11View product
B

be quiet!

System Power 8View product
Power10 differ
Total powerDiffers1000 W500 W
AC input voltageDiffers100 - 240 V200 - 240 V
AC input frequencyDiffers50 - 60 Hz50 Hz
Input currentDiffers14 A4 A
Power factorDiffers0.990.98
Power Factor Correction (PFC) typeKnown for oneActive
Combined power (+3.3V)Differs25 W110 W
Combined power (+12V)Known for one456 W
Combined power (+5V)Differs25 W110 W
Combined power (-12V)Differs0.5 W3.6 W
Combined power (+5Vsb)Known for one15 W
Max output current (+3.3V)Known for one24 A
Max output current (+12V)Known for one38 A
Max output current (+12V1)Known for one24 A
Max output current (+12V2)Known for one20 A
Max output current (+5V)Known for one15 A
Max output current (-12V)Known for one0.3 A
Max output current (+5Vsb)Known for one3 A
EfficiencyDiffers94.1%87%
Hold timeDiffers19.29 ms18 ms
Peak powerKnown for one1100 W
Maximum input current (@110V)Known for one+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Ports & interfaces4 differ
Number of PATA power connectorsKnown for one2
Number of SATA power connectorsDiffers106
Peripheral (Molex) power connectors (4-pin)Differs70
PCI Express power connectors (6+2 pin)Differs82
Cabling typeDiffersSemi-ModularNon-Modular
EPS power connector (8-pin)Known for oneYes
PCI Express power connectors (6-pin)Known for one1
Floppy disk drive connectorKnown for oneYes
Floppy drive power connectorKnown for one2
CPU power connectors (8-pin)Known for one1
Performance1 differ
80 PLUS certificationDiffers80 PLUS Platinum80 PLUS
Noise levelKnown for one30.1 dB
Bearing technologyKnown for oneSleeve
Mean time between failures (MTBF)Known for one100000 h
EPS versionKnown for one2.92
Design2 differ
Fan diameterDiffers13.5 cm12 cm
Fan speedDiffers18002100
Fan locationKnown for oneTop
On/off switchKnown for oneYes
Certificates1 differ
CertificationDiffersErP, WEEECE, CB, TÜV, RCM, CU
Weight & dimensions2 differ
DepthDiffers193 mm140 mm
WeightDiffers2.38 kg1.82 kg
Packaging data4 differ
Package widthDiffers305 mm97 mm
Package depthDiffers514 mm195 mm
Package heightDiffers378 mm268 mm
Package weightDiffers4.59 kg2.17 kg
Other features2 differ
Noise level (silent mode, <30%)Known for one15.5 dB
Noise level (quiet mode, 50%)Differs10.4 dB16.4 dB
Noise level (full-load mode, 100%)Differs26.3 dB30.1 dB
Safety regulation & standardsidentical
SafetyKnown for oneCE, CB, TÜV, FCC, cTUVus, RCM, CU

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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