Compare Power Supplies

Compare Thermaltake Smart 550W vs CORSAIR RM850x Shift 2025

Thermaltake Smart 550W and CORSAIR RM850x Shift 2025 are both power supplies with the same 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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Thermaltake Smart 550W

CORSAIR RM850x Shift 2025

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Last updated 28 minutes ago.

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Brand

Thermaltake

Brand

Corsair

Model

SP-550PCBUS
TT-SP-550PCBAU
SP-550P

Model

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

Release Date

📅 August 2018

Release Date

📅 November 2025

* 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

550 W

Wattage

850 W

Type

ATX

Type

ATX

Modular

No

Modular

Full Shifted

Efficiency

80+ Bronze

Efficiency

-

Output

+3.3V@24A, +5V@15A, +12V@42A, -12V@0.5A, +5VSB@3.0A

Output

-

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

6

SATA Connectors

9

Molex Connectors

4

Molex Connectors

4

Length

139 mm

Length

160 mm

Options (2)

	650W
	750W

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Comparison and key differences summary

Reasons to buy the Thermaltake Smart 550W:

Reasons to buy the CORSAIR RM850x Shift 2025:

Newer Product, it was released around 7 years later
+300 Watts available
Fully modular power supply
+2 PCI-Express 6+2 Pin connectors available
+1 EPS connectors available
+3 SATA connectors available

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