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Compare CORSAIR RM1000x SHIFT 2025 vs be quiet! Straight Power 11 Platinum 850W

CORSAIR RM1000x SHIFT 2025 and be quiet! Straight Power 11 Platinum 850W are both power supplies with the same PCI-Express 6+2 Pin Connectors (4), EPS Connectors (2) and Molex Connectors (4). The main differences are in Wattage, Modular, PCI-Express 16 Pin 12VHPWR Connectors and SATA Connectors.

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CORSAIR RM1000x SHIFT 2025

be quiet! Straight Power 11 Platinum 850W

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Brand

Corsair

Brand

be quiet!

Model

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

Model

BN643

Release Date

📅 November 2025

Release Date

📅 March 2020

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

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Price history

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Compatible PC parts

Graphics Cards ► Cases ►

Compatible PC parts

Graphics Cards ► Cases ►

Wattage

1000 W

Wattage

850 W

Type

ATX

Type

ATX

Modular

Full Shifted

Modular

Full

Efficiency

-

Efficiency

80+ Platinum

PCI-Express 16 Pin 12VHPWR Connectors

1

PCI-Express 16 Pin 12VHPWR Connectors

0

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

4

PCI-Express 6 Pin Connectors

0

PCI-Express 6 Pin Connectors

0

EPS Connectors

2

EPS Connectors

2

SATA Connectors

12

SATA Connectors

11

Molex Connectors

4

Molex Connectors

4

Length

160 mm

Length

170 mm

Options (1)

CORSAIR RM850x Shift 2025

850W
$149.99

Options (5)

	750W $99.90
	650W $134.90
	1000W $149.90
	550W $119.90
	1200W $149.90

Comparison and key differences summary

Reasons to buy the CORSAIR RM1000x SHIFT 2025:

Newer Product, it was released around 6 years later
+150 Watts available
+1 SATA connectors available

Reasons to buy the be quiet! Straight Power 11 Platinum 850W:

4% cheaper, you can save $8.09

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