Product comparison · 2 power supply units

be quiet! Straight Power E8 vs be quiet! TFX-300W power supply unit 20+4 pin ATX ATX Black

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  • 42specifications compared
  • 22differ
  • 20identical
  • 18known for one product only

Key differences

  • Total power
    • Straight Power E8:600 W
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:300 W
  • Combined power (+3.3V)
    • Straight Power E8:140 W
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:110 W
  • Combined power (+12V)
    • Straight Power E8:576 W
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:250 W
  • Combined power (+5V)
    • Straight Power E8:140 W
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:110 W
  • Max output current (+3.3V)
    • Straight Power E8:24 A
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:20 A
  • Max output current (+12V)
    • Straight Power E8:48 A
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:20.83 A
  • Max output current (+5V)
    • Straight Power E8:24 A
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:22 A
  • Max output current (+5Vsb)
    • Straight Power E8:3 A
    • TFX-300W power supply unit 20+4 pin ATX ATX Black:2 A

Side by side

Differences highlightedShow differences only (on)
Comparison of Straight Power E8, TFX-300W
60 specifications
Power11 differ
Total powerDiffers600 W300 W
Maximum input current (@110V)Differs+12V1,+12V2,+12V3,+3.3V,+5V,+5Vsb,-12V+12V1,+12V2,+3.3V,+5V,+5Vsb,-12V
Power Factor Correction (PFC) typeKnown for oneActiveUnknown — not stated by the source
Combined power (+3.3V)Differs140 W110 W
Combined power (+12V)Differs576 W250 W
Combined power (+5V)Differs140 W110 W
Combined power (-12V)Known for one6 WUnknown — not stated by the source
Combined power (+5Vsb)Known for one15 WUnknown — not stated by the source
Max output current (+3.3V)Differs24 A20 A
Max output current (+12V)Differs48 A20.83 A
Max output current (+5V)Differs24 A22 A
Max output current (+5Vsb)Differs3 A2 A
EfficiencyDiffers91%83%
Power protection featuresDiffersOver current, Over power, Over voltage, Overload, Short circuit, Under voltage, OverheatingOver current, Over power, Over voltage, Short circuit, Under voltage
Input currentKnown for oneUnknown — not stated by the source4.5 A
Power factorKnown for oneUnknown — not stated by the source0.9
Hold timeKnown for oneUnknown — not stated by the source17 ms
Ports & interfaces3 differ
Number of SATA power connectorsDiffers62
Peripheral (Molex) power connectors (4-pin)Differs53
PCI Express power connectors (6-pin)Known for one1Unknown — not stated by the source
PCI Express power connectors (6+2 pin)Known for one2Unknown — not stated by the source
CPU power connector (4+4 pin)Known for oneYesUnknown — not stated by the source
Floppy drive power connectorDiffers21
Performance1 differ
80 PLUS certificationDiffers80 PLUS Silver80 PLUS
EPS versionKnown for one2.92Unknown — not stated by the source
Noise levelKnown for one20.5 dBUnknown — not stated by the source
Bearing technologyKnown for oneUnknown — not stated by the sourceRifle
Compatible productsKnown for oneUnknown — not stated by the sourceIntel C6
Design1 differ
Fan diameterDiffers12 cm8 cm
Fan speedKnown for oneUnknown — not stated by the source3600
Safety regulation & standards1 differ
SafetyDiffersFLCE, CB, TUV, N, S, Fl, D
Certificates1 differ
CertificationDiffersCE, CB, D, N, S, TUVENERGY STAR 4.0, ErP, WEEE, RoHS
Compliance certificatesKnown for oneUnknown — not stated by the sourceRoHS
Packaging data1 differ
Package weightDiffers3.01 kg1.41 kg
Other features3 differ
Dimensions (WxDxH)Differs160 x 150 x 86 mm70 x 85 x 177 mm
Package dimensions (WxDxH)Differs328 x 248 x 102 mm159 x 195 x 80 mm
Ports quantityKnown for one20Unknown — not stated by the source
Power rocker switchDiffersYesNo
Operational conditionsidentical
Operating temperature (T-T)Known for oneUnknown — not stated by the source10 - 50 °C
Technical detailsidentical
Sustainability certificatesKnown for oneUnknown — not stated by the sourceENERGY STAR

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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