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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 Zalman ZM500-RS power supply unit

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  • 14specifications compared
  • 11differ
  • 3identical
  • 62known for one product only

Key differences

  • Total power
    • 680 W
    • 500 W
  • Input current
    • 10 A
    • 4 - 8 A
  • Number of SATA power connectors
    • 7
    • 2
  • Peripheral (Molex) power connectors (4-pin)
    • 7
    • 5
  • PCI Express power connectors (6-pin)
    • 2
    • 1
  • Cabling type
    • Semi-Modular
    • Non-Modular
  • Product colour
    • Black
    • Grey
  • Operating temperature (T-T)
    • 0 - 40 °C
    • 10 - 40 °C

Side by side

Differences highlightedShow differences only
76 specifications
A

be quiet!

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

Model E8-CM-680W

View product
B

Zalman

ZM500-RS power supply unit

Model ZM500-RS

View product
Power3 differ
Total powerDiffers680 W500 W
Peak powerKnown for one750 W
AC input voltageKnown for one100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers10 A4 - 8 A
Maximum input current (@110V)Known for one+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.99
Power Factor Correction (PFC) typeKnown for oneActive
Combined power (+3.3V)Known for one75 W
Combined power (+12V)Known for one624 W
Combined power (+5V)Known for one85 W
Combined power (-12V)Known for one6 W
Combined power (+5Vsb)Known for one15 W
Max output current (+3.3V)Known for one24 A
Max output current (+12V)Known for one52 A
Max output current (+5V)Known for one28 A
Max output current (-12V)Known for one0.5 A
Max output current (+5Vsb)Known for one3 A
Hold timeKnown for one19 ms
Power protection featuresDiffersOver current, Over power, Over voltage, Short circuit, Under voltage, OverheatingOver current, Over voltage, Short circuit, Under voltage
EfficiencyKnown for one87%
Ports & interfaces4 differ
Motherboard power connectorKnown for one20+4 pin ATX
Number of SATA power connectorsDiffers72
Peripheral (Molex) power connectors (4-pin)Differs75
PCI Express power connectors (6-pin)Differs21
PCI Express power connectors (6+2 pin)Known for one2
CPU P4 connector (4-pin)Known for one1
Floppy drive power connectorKnown for one2
CPU power connectors (8-pin)Known for one1
Connector(s)Known for oneIEC C14
Cabling typeDiffersSemi-ModularNon-Modular
Monitor outletKnown for oneNo
PCI Express power connectors (8-pin)Known for one1
CPU power connector (4+4 pin)Known for oneYes
ATX power connector (20+4 pin)Known for oneYes
Performanceidentical
PurposeKnown for onePC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationKnown for one80 PLUS Silver
ATX versionKnown for one2.3
EPS versionKnown for one2.92
Noise levelKnown for one21.8 dB
Bearing technologyKnown for oneFDB
Mean time between failures (MTBF)Known for one100000 h
Compatible productsPCPC
Design1 differ
Product colourDiffersBlackGrey
Cooling typeKnown for oneActive
Fan diameterKnown for one12 cm
Number of fansKnown for one1 fan(s)
Fan speedKnown for one1416
Fan locationKnown for oneSide
IlluminationKnown for oneNo
LED indicatorsKnown for oneNo
Operational conditions1 differ
Operating temperature (T-T)Differs0 - 40 °C10 - 40 °C
Storage temperature (T-T)Known for one-20 - 80 °C
Operating relative humidity (H-H)Known for one5 - 95%
Storage relative humidity (H-H)Known for one5 - 95%
Certificates1 differ
Compliance certificatesKnown for oneRoHS
CertificationDiffersErP, WEEE, RoHS80 PLUS Bronze, NVIDIA SLI
Safety regulation & standards1 differ
SafetyDiffersCE, CB, TUV, N, S, Fl, DFCC, CE, CB
Weight & dimensionsidentical
WidthKnown for one150 mm
DepthKnown for one160 mm
HeightKnown for one86 mm
WeightKnown for one2.28 kg
Packaging dataidentical
Package weightKnown for one3.12 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 featuresidentical
Package dimensions (WxDxH)Known for one328 x 248 x 102 mm
Parallel processing technology supportKnown for oneHybrid CrossFireX, Quad-GPU SLI
Power managementKnown for oneYes
Power over Ethernet (PoE)Known for oneNo
Power supply typeKnown for oneAC/DC
Redundant power supply (RPS) supportKnown for oneNo
Power rocker switchKnown for oneYes
Dimensions (WxDxH)Known for one150 x 140 x 86 mm

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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