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Compare be quiet! Straight Power 11 Platinum 1000W vs CORSAIR RM850x Shift 2025

be quiet! Straight Power 11 Platinum 1000W and CORSAIR RM850x Shift 2025 are both power supplies with the same EPS Connectors (2) and Molex Connectors (4). The main differences are in Wattage, Modular, PCI-Express 16 Pin 12VHPWR Connectors and PCI-Express 6+2 Pin Connectors.

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be quiet! Straight Power 11 Platinum 1000W

CORSAIR RM850x Shift 2025

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Brand

be quiet!

Brand

Corsair

Model

BN644
BN309

Model

CP-9020299-NA
CP-9020299-EU
CP-9020299-UK
CP-9020299-AU

Release Date

📅 March 2020

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

1000 W

Wattage

850 W

Type

ATX

Type

ATX

Modular

Full

Modular

Full Shifted

Efficiency

80+ Platinum

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

6

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

11

SATA Connectors

9

Molex Connectors

4

Molex Connectors

4

Length

170 mm

Length

160 mm

Options (5)

	650W Power Supply $134.90
	850W Power Supply $174.90
	750W Power Supply $99.90
	550W Power Supply $119.90
	1200W Power Supply $149.90

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Comparison and key differences summary

Reasons to buy the be quiet! Straight Power 11 Platinum 1000W:

+150 Watts available
+2 PCI-Express 6+2 Pin connectors available
+2 SATA connectors available

Reasons to buy the CORSAIR RM850x Shift 2025:

Newer Product, it was released around 6 years later

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