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Compare CORSAIR RM850x Shift 2025 vs Antec EarthWatts Platinum 550W

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  3. CORSAIR RM850x Shift 2025 🆚 Antec EarthWatts Platinum 550W
CORSAIR RM850x Shift 2025 and Antec EarthWatts Platinum 550W 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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CORSAIR RM850x Shift 2025 Fully Modular ATX Side Interface Native 12V-2x6 Cable ATX 3.1 & PCIe 5.1 105°C-Rated Capacitors Cybenetics Gold CP-9020299-NA
CORSAIR RM850x Shift 2025
Antec EarthWatts Platinum 550W 80 PLUS Platinum EA-550
Antec EarthWatts Platinum 550W
Prices
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In Stock
$149.99
Last updated 40 minutes ago.
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$149.99
In Stock
Free shipping
$169.99
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Pangoly Score (How do we rate?)
-
Pangoly Score (How do we rate?)
88
Brand
Corsair
Brand
Antec
Model
  • CP-9020299-NA
  • CP-9020299-EU
  • CP-9020299-UK
  • CP-9020299-AU
Model
  • EA-550
  • EA-550 Platinum
Release Date
📅 November 2025
Release Date
📅 September 2013
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★★
(10 reviews)
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Graphics Cards ► Cases ►
Compatible PC parts
Graphics Cards ► Cases ►
Pros
-
Pros
  • 80PLUS Platinum
  • Low price for Platinum unit
  • Very quiet
Cons
-
Cons
  • Not modular
  • Voltage regulation could be better
Wattage
850 W
Wattage
550 W
Type
ATX
Type
ATX
Modular
Full Shifted
Modular
No
Efficiency
-
Efficiency
80+ Platinum
Output
-
Output
+5V@16A, +3.3V@16A, +12V1@30A, +12V2@30A, +12V3@30A, +12V4@30A, -12V@0.3A, +5VSB@3A
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
2
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
0
EPS Connectors
2
EPS Connectors
1
SATA Connectors
9
SATA Connectors
5
Molex Connectors
4
Molex Connectors
4
Length
160 mm
Length
139 mm
-

Comparison and key differences summary

Reasons to buy the CORSAIR RM850x Shift 2025:

  • Newer Product, it was released around 12 years later
  • +300 Watts available
  • Fully modular power supply
  • +2 PCI-Express 6+2 Pin connectors available
  • +1 EPS connectors available
  • +4 SATA connectors available

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Reasons to buy the Antec EarthWatts Platinum 550W:

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