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Compare BitFenix Whisper M 550W vs CORSAIR RM1000x SHIFT 2025

BitFenix Whisper M 550W and CORSAIR RM1000x SHIFT 2025 are both power supplies with the same Molex Connectors (4) and Length (160 mm). The main differences are in Wattage, Modular, PCI-Express 16 Pin 12VHPWR Connectors and PCI-Express 6+2 Pin Connectors.

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BitFenix Whisper M 550W

CORSAIR RM1000x SHIFT 2025

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Brand

BitFenix

Brand

Corsair

Model

BP-WG550UMAG-7FM
BP-WG550UMAG-0FM
BP-WG550UMAG-6FM
BP-WG550UMAG-8FM
BP-WG550UMAG-9FM

Model

CP-9020300-NA
CP-9020300-EU
CP-9020300-UK
CP-9020300-AU

Release Date

-

Release Date

📅 November 2025

* First availability for purchase, it may not correspond to the actual market launch date.

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Compatible PC parts

Graphics Cards ► Cases ►

Compatible PC parts

Graphics Cards ► Cases ►

Wattage

550 W

Wattage

1000 W

Type

ATX

Type

ATX

Modular

Full

Modular

Full Shifted

Efficiency

80+ Gold

Efficiency

-

PCI-Express 16 Pin 12VHPWR Connectors

0

PCI-Express 16 Pin 12VHPWR Connectors

1

PCI-Express 12 Pin Connectors

0

PCI-Express 12 Pin Connectors

0

PCI-Express 6+2 Pin Connectors

2

PCI-Express 6+2 Pin Connectors

4

PCI-Express 6 Pin Connectors

0

PCI-Express 6 Pin Connectors

0

EPS Connectors

1

EPS Connectors

2

SATA Connectors

8

SATA Connectors

12

Molex Connectors

4

Molex Connectors

4

Length

160 mm

Length

160 mm

Options (4)

	BP-WG450UMAG-7FM $79.90
	BP-WG650UMAG-7FM $99.90
	BP-WG750UMAG-7FM $109.90
	BP-WG850UMAG-7FM $119.90

Options (1)

CORSAIR RM850x Shift 2025

850W
$149.99

Comparison and key differences summary

Reasons to buy the BitFenix Whisper M 550W:

57% cheaper, you can save $104.00

Reasons to buy the CORSAIR RM1000x SHIFT 2025:

+450 Watts available
+2 PCI-Express 6+2 Pin connectors available
+1 EPS connectors available
+4 SATA connectors available

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