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Product comparison · 2 power supply units

be quiet! BQT L8-CM-630W vs be quiet! TFX-300W power supply unit 20+4 pin ATX ATX Black

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  • 31specifications compared
  • 17differ
  • 14identical
  • 25known for one product only

Key differences

  • Total power
    • 630 W
    • 300 W
  • Input current
    • 10 A
    • 4.5 A
  • Combined power (+3.3V)
    • 80 W
    • 110 W
  • Combined power (+12V)
    • 564 W
    • 250 W
  • Combined power (+5V)
    • 70 W
    • 110 W
  • Max output current (+3.3V)
    • 25 A
    • 20 A
  • Max output current (+12V)
    • 47 A
    • 20.83 A
  • Max output current (+5V)
    • 20 A
    • 22 A

Side by side

Differences highlightedShow differences only
56 specifications
A

be quiet!

BQT L8-CM-630WView product
B

be quiet!

TFX-300W power supply unit 20+4 pin ATX ATX Black

Model TFX-300W

View product
Power10 differ
Total powerDiffers630 W300 W
AC input voltage100 - 240 V100 - 240 V
AC input frequency50 - 60 Hz50 - 60 Hz
Input currentDiffers10 A4.5 A
Maximum input current (@110V)Known for one+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power factorKnown for one0.9
Combined power (+3.3V)Differs80 W110 W
Combined power (+12V)Differs564 W250 W
Combined power (+5V)Differs70 W110 W
Max output current (+3.3V)Differs25 A20 A
Max output current (+12V)Differs47 A20.83 A
Max output current (+5V)Differs20 A22 A
Max output current (-12V)Differs0.3 A0.5 A
Max output current (+5Vsb)Differs3 A2 A
EfficiencyKnown for one83%
Hold timeKnown for one17 ms
Power protection featuresKnown for oneOver current, Over power, Over voltage, Short circuit, Under voltage
Combined power (-12V)Known for one3.6 W
Combined power (+5Vsb)Known for one15 W
Ports & interfaces1 differ
Motherboard power connector20+4 pin ATX20+4 pin ATX
Number of SATA power connectorsKnown for one2
Peripheral (Molex) power connectors (4-pin)Known for one3
CPU P4 connector (4-pin)Known for one1
Floppy drive power connectorKnown for one1
Connector(s)IEC C14IEC C14
Cabling typeDiffersSemi-ModularNon-Modular
Monitor outletKnown for oneNo
Performance2 differ
PurposePCPC
Power supply unit (PSU) form factorATXATX
80 PLUS certificationDiffers80 PLUS Bronze80 PLUS
ATX versionKnown for one2.3
Bearing technologyKnown for oneRifle
Mean time between failures (MTBF)100000 h100000 h
Compatible productsDiffersPCIntel C6
Design1 differ
Product colourBlackBlack
Fan diameterDiffers12 cm8 cm
Number of fans1 fan(s)1 fan(s)
Fan speedKnown for one3600
Fan locationSideSide
LED indicatorsNoNo
IlluminationKnown for oneNo
Operational conditions1 differ
Operating temperature (T-T)Differs5 - 40 °C10 - 50 °C
Certificatesidentical
Compliance certificatesKnown for oneRoHS
CertificationKnown for oneENERGY STAR 4.0, ErP, WEEE, RoHS
Safety regulation & standards1 differ
SafetyDiffersCB, CE, SCE, CB, TUV, N, S, Fl, D
Packaging dataidentical
Package weightKnown for one1.41 kg
Technical detailsidentical
Sustainability certificatesKnown for oneENERGY STAR
Other features1 differ
Dimensions (WxDxH)Known for one70 x 85 x 177 mm
Package dimensions (WxDxH)Known for one159 x 195 x 80 mm
Parallel processing technology supportKnown for oneNot supported
Power managementYesYes
Power over Ethernet (PoE)NoNo
Power supply typeKnown for oneAC/DC
Redundant power supply (RPS) supportNoNo
Power rocker switchDiffersYesNo
Logistics dataidentical
Country of originKnown for oneChina

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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