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Product comparison · 2 power supply units

be quiet! Efficient Power F1 vs be quiet! Straight Power E9 CM

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  • 44specifications compared
  • 23differ
  • 21identical
  • 18known for one product only

Key differences

  • Total power
    • 400 W
    • 680 W
  • Input current
    • 3 - 6 A
    • 5 - 10 A
  • Combined power (+3.3V)
    • 120 W
    • 160 W
  • Combined power (+12V)
    • 384 W
    • 660 W
  • Combined power (+5V)
    • 120 W
    • 160 W
  • Max output current (+12V)
    • 18 A
    • 55 A
  • Max output current (+5V)
    • 22 A
    • 28 A
  • Max output current (-12V)
    • 0.3 A
    • 0.5 A

Side by side

Differences highlightedShow differences only
62 specifications
A

be quiet!

Efficient Power F1View product
B

be quiet!

Straight Power E9 CMView product
Power11 differ
Total powerDiffers400 W680 W
Peak powerKnown for one750 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers3 - 6 A5 - 10 A
Maximum input current (@110V)Differs+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.99
Power Factor Correction (PFC) typeActiveActive
Combined power (+3.3V)Differs120 W160 W
Combined power (+12V)Differs384 W660 W
Combined power (+5V)Differs120 W160 W
Max output current (+3.3V)24 A24 A
Max output current (+12V)Differs18 A55 A
Max output current (+12V1)18 A18 A
Max output current (+12V2)18 A18 A
Max output current (+12V3)Known for one22 A
Max output current (+12V4)Known for one22 A
Max output current (+5V)Differs22 A28 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)3 A3 A
EfficiencyDiffers92%93%
Hold timeDiffers32 ms19 ms
Power protection featuresOver current, Over power, Over voltage, Overheating, Short circuit, Under voltageOver current, Over power, Over voltage, Overheating, Short circuit, Under voltage
Combined power (-12V)Known for one3.6 W
Combined power (+5Vsb)Known for one15 W
Ports & interfaces5 differ
Motherboard power connectorDiffers24-pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers59
Peripheral (Molex) power connectors (4-pin)Differs36
PCI Express power connectors (6+2 pin)Differs14
CPU P4 connector (4-pin)Known for one1
CPU power connector (4+4 pin)YesYes
Floppy drive power connector11
Cabling typeDiffersNon-ModularSemi-Modular
ATX Power connector (24-pin)Known for oneYes
Performance2 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Gold80 PLUS Gold
ATX version2.312.31
EPS version2.922.92
Noise levelDiffers30 dB23.6 dB
Bearing technologyKnown for oneFDB
Mean time between failures (MTBF)Differs100000 h300000 h
Design1 differ
Product colourBlackBlack
Cooling typeActiveActive
Fan diameterDiffers12 cm13.5 cm
Number of fans1 fan(s)1 fan(s)
Fan speedKnown for one1390
Fan locationKnown for oneTop
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Certificates1 differ
Compliance certificatesRoHSRoHS
CertificationDiffersCE, CB, TÜV, Semko, ErP, WEEECE, CB, TÜV, Semko (S)
Weight & dimensions3 differ
WidthDiffers140 mm150 mm
DepthDiffers150 mm160 mm
Height86 mm86 mm
WeightDiffers1.97 kg2.66 kg
Packaging dataidentical
Package weightKnown for one3.08 kg
Technical detailsidentical
Sustainability certificatesENERGY STARENERGY STAR
Other featuresidentical
Noise level (silent mode, <30%)Known for one13.7 dB
Noise level (quiet mode, 50%)Known for one13.7 dB
Noise level (full-load mode, 100%)Known for one23.6 dB
Package dimensions (WxDxH)Known for one248 x 328 x 102 mm
Power supply typeKnown for oneAC/DC

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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