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Product comparison · 2 power supply units

be quiet! BQT P8-PRO-1000W vs be quiet! Straight Power E8 CM

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  • 50specifications compared
  • 22differ
  • 28identical
  • 18known for one product only

Key differences

  • Total power
    • 1000 W
    • 480 W
  • Peak power
    • 1100 W
    • 550 W
  • Combined power (+3.3V)
    • 80 W
    • 140 W
  • Combined power (+12V)
    • 980 W
    • 420 W
  • Combined power (+5V)
    • 100 W
    • 140 W
  • Combined power (-12V)
    • 6 W
    • 3.6 W
  • Combined power (+5Vsb)
    • 20 W
    • 15 W
  • Max output current (+12V)
    • 80 A
    • 35 A

Side by side

Differences highlightedShow differences only
68 specifications
A

be quiet!

BQT P8-PRO-1000WView product
B

be quiet!

Straight Power E8 CMView product
Power14 differ
Total powerDiffers1000 W480 W
Peak powerDiffers1100 W550 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentKnown for one8 A
Maximum input current (@110V)Differs+12V1,+12V2,+12V3,+12V4,+12V5,+12V6,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+12V3,+12V4,+3.3V,+5V,+5Vsb,-12V
Power factor0.990.99
Power Factor Correction (PFC) typeActiveActive
Combined power (+3.3V)Differs80 W140 W
Combined power (+12V)Differs980 W420 W
Combined power (+5V)Differs100 W140 W
Combined power (-12V)Differs6 W3.6 W
Combined power (+5Vsb)Differs20 W15 W
Max output current (+3.3V)24 A24 A
Max output current (+12V)Differs80 A35 A
Max output current (+5V)Differs30 A22 A
Max output current (-12V)Differs0.5 A0.3 A
Max output current (+5Vsb)Differs4 A3 A
EfficiencyDiffers92%89%
Hold timeDiffers30 ms17 ms
Power protection featuresOver current, Over power, Over voltage, Short circuit, Under voltage, OverheatingOver current, Over power, Over voltage, Short circuit, Under voltage, Overheating
Ports & interfaces5 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsDiffers115
Peripheral (Molex) power connectors (4-pin)Differs85
PCI Express power connectors (6-pin)Differs31
PCI Express power connectors (6+2 pin)Differs31
CPU P4 connector (4-pin)Known for one1
Floppy drive power connector22
Connector(s)Differs37IEC C14
Cabling typeSemi-ModularSemi-Modular
CPU power connector (4+4 pin)Known for oneYes
CPU power connectors (8-pin)Known for one1
Performance1 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certification80 PLUS Silver80 PLUS Silver
ATX version2.32.3
EPS version2.922.92
Noise levelKnown for one18.9 dB
Bearing technologyFDBFDB
Mean time between failures (MTBF)100000 h100000 h
Compatible productsDiffersIntel DPD C6Multi-GPU, NVIDIA Hybrid, AMD / ATI CrossFire
Designidentical
Product colourBlackBlack
Fan diameter12 cm12 cm
Number of fans1 fan(s)1 fan(s)
Fan speedKnown for one1251
Fan locationSideSide
LED indicatorsNoNo
Cooling typeKnown for oneActive
IlluminationKnown for oneNo
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Certificates1 differ
Compliance certificatesRoHSRoHS
CertificationDiffers2002/95/EG RoHS and WEEEErP, WEEE, RoHS, Energy Star 5.0
Safety regulation & standardsidentical
SafetyCE, CB, TUV, N, S, Fl, DCE, CB, TUV, N, S, Fl, D
Weight & dimensionsidentical
WeightKnown for one2.26 kg
WidthKnown for one200 mm
DepthKnown for one150 mm
HeightKnown for one86 mm
Packaging dataidentical
Package weightKnown for one3.03 kg
Technical detailsidentical
Sustainability certificatesENERGY STARENERGY STAR
Other features1 differ
Dimensions (WxDxH)Differs200 x 150 x 86 mm160 x 150 x 86 mm
Package dimensions (WxDxH)Known for one333 x 248 x 102 mm
Parallel processing technology supportKnown for oneHybrid CrossFireX
Power managementYesYes
Power over Ethernet (PoE)NoNo
Power supply typeKnown for oneAC/DC
Redundant power supply (RPS) supportNoNo
Supported protocolsKnown for oneIntel C6
Power rocker switchYesYes

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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