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Compare Seasonic M12II 520 vs G-550

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  2. Power Supplies
  3. Seasonic M12II 520 🆚 SeaSonic G-550
Seasonic M12II 520 and SeaSonic G-550 are both power supplies with the same PCI-Express 6+2 Pin Connectors (2), EPS Connectors (1) and SATA Connectors (6). The main differences are in Wattage, Modular and Efficiency.
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Seasonic M12II 520 BRONZE SS-520GM
Seasonic M12II 520
SeaSonic G-550 550W 80 PLUS Gold Modular SSR-550RM
SeaSonic G-550
Prices
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Prices
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Pangoly Score (How do we rate?)
-
Pangoly Score (How do we rate?)
92
Brand
Seasonic
Brand
SeaSonic
Model
SS-520GM2
Model
SSR-550RM
Release Date
📅 August 2018
Release Date
📅 October 2012
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★★
(148 reviews)
Price history
View Details ►
Price history
View Details ►
Compatible PC parts
Graphics Cards ► Cases ►
Compatible PC parts
Graphics Cards ► Cases ►
Pros
-
Pros
  • 80PLUS Gold
  • Excellent voltage stability
  • Excellent ripple suppression
  • Modular
  • Quiet
Cons
-
Cons
  • Cables may be a bit short
Wattage
520 W
Wattage
550 W
Type
ATX
Type
ATX
Modular
Full
Modular
Semi
Efficiency
80+ Bronze
Efficiency
80+ Gold
Output
-
Output
+3.3V@20A, +5V@20A, +12V@45A, -12V@0.3A, +5VSB@2.5A
PCI-Express 16 Pin 12VHPWR Connectors
0
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
2
PCI-Express 6+2 Pin Connectors
2
PCI-Express 6 Pin Connectors
0
PCI-Express 6 Pin Connectors
0
EPS Connectors
1
EPS Connectors
1
SATA Connectors
6
SATA Connectors
6
Molex Connectors
5
Molex Connectors
5
Length
160 mm
Length
160 mm

Comparison and key differences summary

Reasons to buy the Seasonic M12II 520:

  • Newer Product, it was released around 6 years later
  • Fully modular power supply

Buy now

Reasons to buy the SeaSonic G-550:

  • +30 Watts available
  • Better 80 Plus efficiency

Buy now

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