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Product comparison · 2 power supply units

be quiet! E8-CM-680W power supply unit 20+4 pin ATX ATX Black vs be quiet! Straight Power E8

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  • 47specifications compared
  • 17differ
  • 30identical
  • 25known for one product only

Key differences

  • Total power
    • 680 W
    • 600 W
  • Combined power (+3.3V)
    • 75 W
    • 140 W
  • Combined power (+12V)
    • 624 W
    • 576 W
  • Combined power (+5V)
    • 85 W
    • 140 W
  • Max output current (+12V)
    • 52 A
    • 48 A
  • Max output current (+5V)
    • 28 A
    • 24 A
  • Number of SATA power connectors
    • 7
    • 6
  • Peripheral (Molex) power connectors (4-pin)
    • 7
    • 5

Side by side

Differences highlightedShow differences only
72 specifications
A

be quiet!

E8-CM-680W power supply unit 20+4 pin ATX ATX Black

Model E8-CM-680W

View product
B

be quiet!

Straight Power E8View product
Power8 differ
Total powerDiffers680 W600 W
Peak powerKnown for one750 W
Input currentKnown for one10 A
Maximum input current (@110V)Differs+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.99
Combined power (+3.3V)Differs75 W140 W
Combined power (+12V)Differs624 W576 W
Combined power (+5V)Differs85 W140 W
Max output current (+12V)Differs52 A48 A
Max output current (+5V)Differs28 A24 A
Hold timeKnown for one19 ms
Power protection featuresDiffersOver current, Over power, Over voltage, Short circuit, Under voltage, OverheatingOver current, Over power, Over voltage, Overload, Short circuit, Under voltage, Overheating
EfficiencyKnown for one91%
Ports & interfaces4 differ
Number of SATA power connectorsDiffers76
Peripheral (Molex) power connectors (4-pin)Differs75
PCI Express power connectors (6-pin)Differs21
CPU power connectors (8-pin)Known for one1
Cabling typeDiffersSemi-ModularNon-Modular
Monitor outletKnown for oneNo
CPU power connector (4+4 pin)Known for oneYes
Performance1 differ
Noise levelDiffers21.8 dB20.5 dB
Bearing technologyKnown for oneFDB
Compatible productsKnown for onePC
Designidentical
Cooling typeKnown for oneActive
Fan speedKnown for one1416
IlluminationKnown for oneNo
Operational conditionsidentical
Operating temperature (T-T)Known for one0 - 40 °C
Certificates1 differ
Compliance certificatesKnown for oneRoHS
CertificationDiffersErP, WEEE, RoHSCE, CB, D, N, S, TUV
Safety regulation & standards1 differ
SafetyDiffersCE, CB, TUV, N, S, Fl, DFL
Weight & dimensionsidentical
WidthKnown for one150 mm
DepthKnown for one160 mm
HeightKnown for one86 mm
WeightKnown for one2.28 kg
Packaging data1 differ
Package weightDiffers3.12 kg3.01 kg
Case or master carton dimensions (W x D x H)Known for one661 x 282 x 358 mm
Case or master carton quantityKnown for one6 pc(s)
Case or master carton weightKnown for one20 kg
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other features1 differ
Parallel processing technology supportDiffersHybrid CrossFireX, Quad-GPU SLINot supported
Dimensions (WxDxH)Known for one160 x 150 x 86 mm
Ports quantityKnown for one20

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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