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Corsair HX750 750W vs XFX P1550BBEFX 550W vs CORSAIR RMX Series RM650x vs BitFenix Whisper M 450W

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Brand
Corsair
Brand
XFX
Brand
Corsair
Brand
BitFenix
Model
  • CP-9020137-NA
  • CP-9020137-EU
  • CP-9020137-UK
Model
P1550BBEFX
Model
  • CP-9020178-NA
  • CP-9020178-UK
  • CP-9020178-EU
Model
  • BP-WG450UMAG-7FM
  • BP-WG450UMAG-0FM
  • BP-WG450UMAG-6FM
  • BP-WG450UMAG-8FM
  • BP-WG450UMAG-9FM
Release Date
📅 February 2017
Release Date
📅 January 2011
Release Date
📅 February 2018
Release Date
-
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
User reviews
User reviews
Price history
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Price history
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Price history
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Price history
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Supported PC parts
Supported PC parts
Supported PC parts
Supported PC parts
Wattage
750 W
Wattage
-
Wattage
650 W
Wattage
450 W
Type
ATX
Type
-
Type
ATX
Type
ATX
Modular
Full
Modular
-
Modular
Full
Modular
Full
Efficiency
80+ Platinum
Efficiency
-
Efficiency
80+ Gold
Efficiency
80+ Gold
Output
+3.3V@25A, +5V@25A, +12V@62.5A, -12V@0.8A, +5HXB@3A
Output
-
Output
-
Output
-
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 16 Pin 12VHPWR Connectors
-
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 16 Pin 12VHPWR Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 12 Pin Connectors
-
PCI-Express 12 Pin Connectors
0
PCI-Express 12 Pin Connectors
0
PCI-Express 6+2 Pin Connectors
4
PCI-Express 6+2 Pin Connectors
-
PCI-Express 6+2 Pin Connectors
4
PCI-Express 6+2 Pin Connectors
2
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
-
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
0
EPS Connectors
2
EPS Connectors
-
EPS Connectors
1
EPS Connectors
1
SATA Connectors
16
SATA Connectors
-
SATA Connectors
9
SATA Connectors
8
Molex Connectors
4
Molex Connectors
-
Molex Connectors
4
Molex Connectors
4
Length
180 mm
Length
-
Length
160 mm
Length
160 mm

What are the differences between Corsair HX750 750W and XFX P1550BBEFX 550W and CORSAIR RMX Series RM650x and BitFenix Whisper M 450W? Analyze head-to-head all specifications and features to find out the better power supply.
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