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Compare SeaSonic G-650 vs G-550

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  3. SeaSonic G-650 🆚 SeaSonic G-550
SeaSonic G-650 and SeaSonic G-550 are both power supplies with the same Modular (Semi), Efficiency (80+ Gold) and Molex Connectors (5). The main differences are in Wattage, Output, PCI-Express 6+2 Pin Connectors and EPS Connectors.
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SeaSonic G-650 650W 80 PLUS Gold Modular SSR-650RM
SeaSonic G-650
SeaSonic G-550 550W 80 PLUS Gold Modular SSR-550RM
SeaSonic G-550
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* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Pangoly Score (How do we rate?)
93
Pangoly Score (How do we rate?)
92
Brand
SeaSonic
Brand
SeaSonic
Model
SSR-650RM
Model
SSR-550RM
Release Date
📅 October 2012
Release Date
📅 October 2012
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★★
(61 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
  • 80PLUS Gold
  • Excellent voltage stability
  • Excellent ripple suppression
  • Modular
  • Quiet
Pros
  • 80PLUS Gold
  • Excellent voltage stability
  • Excellent ripple suppression
  • Modular
  • Quiet
Cons
  • None
Cons
  • Cables may be a bit short
Wattage
650 W
Wattage
550 W
Type
ATX
Type
ATX
Modular
Semi
Modular
Semi
Efficiency
80+ Gold
Efficiency
80+ Gold
Output
+3.3V@20A, +5V@20A, +12V@54A, -12V@0.3A, +5VSB@2.5A
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
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
8
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 G-650:

  • Better Pangoly Score. (How do we rate?)
  • +100 Watts available
  • +2 PCI-Express 6+2 Pin connectors available
  • +1 EPS connectors available
  • +2 SATA connectors available

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Reasons to buy the SeaSonic G-550:

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